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Flashing the 300 W VBIOS

ImportBot — Sat, 31 Oct 2026 13:57:10 GMT

Import: flashing the factory 300 W VBIOS 92.00.6D.00.0A onto 8 GB cards, the procedure proven on eight cards, results and hashrate numbers; @c133, @shirogeek, @derick2k, @phoenixone7, @wakeupmbrc1, @con3po7016, @cute_sc2, @mrpec, @unmotivatedgene, @xanthefin; repos polyuij42-del/cmp170hx-vbios-flash and Consensus-Protocol/cmp170hx; lab notes

← Older revision		Revision as of 13:57, 31 October 2026
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	\| 300 W image, GPC offset +130 \|\| 1,549 TH/s \|\| 1290 to 1380 MHz \|\| unchanged \|\| 20 min soak, 0 Xid		\| 300 W image, GPC offset +130 \|\| 1,549 TH/s \|\| 1290 to 1380 MHz \|\| unchanged \|\| 20 min soak, 0 Xid
	\|-		\|-
	\| 300 W image, GPC offset +160 \|\| 1,564 TH/s \|\| 1335 to 1410 MHz \|\| unchanged \|\| 20 min soak, 0 Xid; ~~cool-slot~~ cards at the ~~1410 MHz ceiling~~		\| 300 W image, GPC offset +160 \|\| 1,564 TH/s \|\| 1335 to 1410 MHz \|\| unchanged \|\| 20 min soak, 0 Xid
			\|-
			\| 300 W image, GPC offset +190 \|\| 1,579 TH/s \|\| 1335 to 1425 MHz \|\| unchanged \|\| 20 min soak, 0 Xid
			\|-
			\| 300 W image, GPC offset +220 \|\| 1,598 TH/s \|\| 1350 to 1440 MHz \|\| unchanged \|\| 20 min soak, 0 Xid; six cards at the ladder's top rung, two re-running after false alarms
	\|}		\|}
	Power draw stayed at the caps the whole time: the offset lets the core hold a higher clock at the same watts, so the		Power draw stayed at the caps the whole time: the offset lets the core hold a higher clock at the same watts, so the
	gain comes with no extra heat. Two cards were held back early by a stale share each (a rule that counted any rejected		gain comes with no extra heat. Two cards were held back early by a stale share each (a rule that counted any rejected
	share; it ~~should count~~ only invalid ones)~~; they sit at +50~~ and ~~+80 until~~ re-run.		share; it now counts only invalid ones) and are being re-run from +160. +9.5 % total at the same watts and the same
			temperatures. +220 was the ladder's chosen top, not a measured ceiling; the long soak and the persist step come next.

	{{Status\|Proven}} {{Cards\|8 GB}}<br />		{{Status\|Proven}} {{Cards\|8 GB}}<br />

VBIOS and firmware

ImportBot — Sat, 31 Oct 2026 13:22:03 GMT

Link the 300 W VBIOS flash procedure (lab notes 2026-10-31) from the inventory and Status

← Older revision		Revision as of 13:22, 31 October 2026
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	\| 92.00.67.00.01 \|\| 8 GB \|\| stock production (2021-05-14, 250 W)		\| 92.00.67.00.01 \|\| 8 GB \|\| stock production (2021-05-14, 250 W)
	\|-		\|-
	\| 92.00.6D.00.0A \|\| 8 GB \|\| 300 W OC image, memory OC allowed		\| 92.00.6D.00.0A \|\| 8 GB \|\| 300 W OC image, memory OC allowed; the undervolt range opens on it; flashing it onto a 92.00.67.00.01 card: [[Flashing the 300 W VBIOS]]
	\|-		\|-
	\| 92.00.6D.00.09 \|\| 8 GB \|\| 300 W, no memory OC		\| 92.00.6D.00.09 \|\| 8 GB \|\| 300 W, no memory OC
Line 112:		Line 112:

	VBIOS editing can change power/clocks (reported); it cannot do the memory/compute/PCIe unlock (that is driver-side).		VBIOS editing can change power/clocks (reported); it cannot do the memory/compute/PCIe unlock (that is driver-side).
	Flashing modified or third-party ROMs is a warning, not a recommendation.		Flashing modified or third-party ROMs is a warning, not a recommendation. Flashing the factory 300 W image onto an 8 GB card is a different matter: proven on eight cards, see [[Flashing the 300 W VBIOS]].

	== Related ==		== Related ==

Flashing the 300 W VBIOS

ImportBot — Sat, 31 Oct 2026 13:21:34 GMT

New page

Most 8 GB cards ship with VBIOS 92.00.67.00.01, the 250 W image. On it the driver reports a GPC and memory VF-offset
range of [0 .. +0], so no undervolt can be applied, whatever a tool says it set. The factory 300 W image
92.00.6D.00.0A, which NVIDIA shipped on the same board part number (900-11001-0108-000), exposes an offset range of
[-1000 .. +1000], boots the HBM at 1728 MHz instead of 1458 MHz, raises the SM ceiling from 1410 to 1695 MHz, and
keeps a 250 W default cap (300 W is the maximum it allows). This page is the flash procedure as run on eight cards in
one night, with the numbers before and after. It does not touch the memory or compute unlock, which stays in the
driver; see [[Driver unlock]].

The 10 GB card has no 300 W image (its only VBIOS is 92.00.66.00.02); this page is for 8 GB cards. See
[[VBIOS and firmware]] for the full image inventory.

== Why flash it ==
=== The 250 W image has no undervolt lever ===
<code><nowiki>nvml_oc -i N</nowiki></code> (the helper 170tune uses) reports <code><nowiki>allowed range : [0 .. +0] MHz</nowiki></code>
for both the GPC and the memory VF offset on every 92.00.67.00.01 card. An offset call can return success and the
driver still drops it; only a readback proves it applied. On the same cards after the flash the range reads
[-1000 .. +1000].

{{Status|Proven}} {{Cards|8 GB}} 
{{Source|handle=mrpec|date=2026-08-01|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1533150703328039085}} 
{{Source|handle=unmotivatedgene|date=2026-08-23|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1541201873803943997}} 
{{Source|handle=darkmaniac7|date=2026-10-31|note=lab notes}}

=== Same board, same IDs ===
Both images carry device 10DE:20C2, subsystem 10DE:1585 and board ID 0x030A, and both have been read off cards with
board part number 900-11001-0108-000 and die 20C2-105-A1. nvflash accepts the 300 W image on a 250 W card without any
override because the IDs match; it is a signed NVIDIA image, not a modified one.

{{Status|Reported}} {{Cards|8 GB}} 
{{Source|handle=con3po7016|date=2026-08-23|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1541194940997046322}} 
{{Source|handle=wakeupmbrc1|date=2026-08-30|link=https://discord.com/channels/1518634379604136178/1518695289278566450/1543658140875235459}}

== Before you start ==
# '''An 8 GB card on 92.00.67.00.01.''' Read it with <code><nowiki>nvidia-smi --query-gpu=index,pci.bus_id,vbios_version --format=csv</nowiki></code>. A card already on 92.00.6D.00.0A has nothing to gain.
# '''nvflash 5.867 for Linux''', the <code><nowiki>x64/nvflash</nowiki></code> binary from the TechPowerUp download (the zip holds x86, x64, aarch64 and ppc64 builds; the Windows zip is a different download).
# '''The ROM''', TechPowerUp VBIOS database entry 268495 (listed there as "CMP 170HX 0 MB"; the size column is wrong). Verify it before it goes near a card: see below. A copy is attached to this page.
# '''A rollback ROM.''' Save one card's 92.00.67.00.01 image with <code><nowiki>nvflash -i N --save</nowiki></code> before you write anything. The static part of the image is identical across cards of the same version, so one dump serves as the rollback for all of them.
# '''A way to power the machine off and on''' that does not depend on the GPUs: a BMC, or someone at the button. The procedure needs two cold cycles, and a wedged flash controller only clears on a cold cycle.
# '''The driver unloaded, or never loaded.''' nvflash refuses to write with the NVIDIA kernel module present. The method below boots without it, which also avoids the unbind hang described further down.

== Verify the ROM ==
The TechPowerUp file matched these values exactly:
{| class="wikitable"
! Field !! Value
|-
| Version || 92.00.6D.00.0A
|-
| Build / modification date || 06/16/21 / 04/07/22
|-
| Size || 1,044,480 bytes
|-
| Device / subsystem / board ID || 0x20C2 / 0x1585 / 0x030A
|-
| MD5 || a58aae86e72b13d50603c15653350664
|-
| SHA1 || efad37d514bb94ac345719a0c56d9cd147cddfb7
|-
| SHA256 || 789e8f8d4c70dc9eb114c9fdcef6ed2d00aedf15a1eca522519de02042818723
|}
Two checks that do not depend on a hash:
* <code><nowiki>nvflash --version 300w.rom</nowiki></code> reads the header from the file only (it does not touch a card) and must print the version, device, subsystem and board IDs above, and <code><nowiki>License Placeholder : Present</nowiki></code>.
* <code><nowiki>python3 check_rom.py 300w.rom --expect 300W</nowiki></code> (attached) checks the structural markers: the NVGI header, the 300 W power bytes <code><nowiki>E0 93 04</nowiki></code> at 0x46045, the strap tier byte 0x44 at 0x41F53 (0x66 there means a forged "64 GB" ROM that bricks the card at boot), an all-zero license region at 0xFE504, and the dual-bank mirror. The same script recognises the 250 W image (<code><nowiki>--expect 250W</nowiki></code>) for checking your rollback dump.

{{Status|Reported}} {{Cards|8 GB}} 
{{Source|repo=https://github.com/polyuij42-del/cmp170hx-vbios-flash}} 
{{Source|repo=https://github.com/Consensus-Protocol/cmp170hx}}

== The procedure (driverless boot) ==
Proven on eight cards in two rounds, 2026-10-31, on a bare-metal Ubuntu box with the cmpunlocker driver build 615.71.09,
BMC power control and the tooling attached below. Every write took about 10 seconds. Read the two rules first:

* '''One nvflash operation per card per boot.''' After a power-on, the first nvflash command that touches a card's flash controller (<code><nowiki>--check</nowiki></code>, <code><nowiki>--save</nowiki></code> or a write) works; a second one on the same card fails with <code><nowiki>Falcon In HALT or STOP state</nowiki></code> or <code><nowiki>Detecting GPU failed</nowiki></code> and nothing is written. So the rollback save comes from a card you are not writing in that boot (or from an earlier boot), and the write is the first and only thing you do to each target card. A PCIe remove and rescan of one device (<code><nowiki>echo 1 > /sys/bus/pci/devices/0000:XX:00.0/remove; echo 1 > /sys/bus/pci/rescan</nowiki></code>) re-opened the window once in the lab; do not count on it.
* '''nvflash 5.867 ignores <code><nowiki>-y</nowiki></code> and refuses piped input.''' The confirm prompt needs a real terminal. It prints the card's current and replacement version strings before the prompt, and the PCI bus only in its Results table after the operation, so the attached controller confirms on the version strings (current must be 92.00.67.00.01, replacement 92.00.6D.00.0A) and checks the bus afterwards. nvflash's <code><nowiki>-i</nowiki></code> index follows PCI bus order, the same order <code><nowiki>nvidia-smi</nowiki></code> uses with <code><nowiki>CUDA_DEVICE_ORDER=PCI_BUS_ID</nowiki></code>; the Results table confirmed <code><nowiki>-i 7</nowiki></code> = bus C2 on the lab box.

Steps:
# Stop everything that holds the GPUs (engines, miners), until <code><nowiki>lsof /dev/nvidia*</nowiki></code> shows nothing. Record every card's VBIOS version.
# Keep the driver out of the next boot: <code><nowiki>/etc/modprobe.d/zz-flash-window.conf</nowiki></code> with <code><nowiki>install nvidia /bin/false</nowiki></code> (and the same for nvidia_modeset, nvidia_drm, nvidia_uvm). Mask or disable the units that would start GPU work at boot (docker, miners, any model loader). Note what you changed.
# Cold cycle: power off, 30 seconds dark, power on. Confirm <code><nowiki>lsmod | grep nvidia</nowiki></code> is empty and that the cards are enumerated with no driver bound.
# Save the rollback ROM from a card you will not write this boot: <code><nowiki>nvflash -i N --save backup.rom</nowiki></code>, then <code><nowiki>check_rom.py backup.rom --expect 250W</nowiki></code>.
# Write each target card once: <code><nowiki>nvflash -i N 300w.rom</nowiki></code>, answer <code><nowiki>y</nowiki></code> at the prompt (or let the attached controller do it). Success looks like a progress bar to 100 %, two verification reads, and <code><nowiki>A reboot is required for the update to take effect.</nowiki></code> with exit code 0. Anything else: do not retry that card this boot.
# Remove the blacklist, restore the units, cold cycle again.
# Verify: <code><nowiki>nvidia-smi --query-gpu=index,vbios_version,memory.total,clocks.max.memory,power.default_limit,power.max_limit --format=csv</nowiki></code> should show 92.00.6D.00.0A, your unlocked memory size, 1728 MHz, 250 W default and 300 W maximum; <code><nowiki>nvml_oc -i N</nowiki></code> should show the [-1000 .. +1000] range.

The attached <code><nowiki>window.sh</nowiki></code> runs those phases (<code><nowiki>check</nowiki></code>, <code><nowiki>prep</nowiki></code>, <code><nowiki>flash</nowiki></code>, <code><nowiki>restore</nowiki></code>, <code><nowiki>verify</nowiki></code>) with the lab box's unit names and bus map; edit those before using it elsewhere.

{{Status|Proven}} {{Cards|8 GB}} 
{{Source|handle=darkmaniac7|date=2026-10-31|note=lab notes}} 
{{Source|repo=https://github.com/polyuij42-del/cmp170hx-vbios-flash}}

=== Why not unbind the driver instead ===
The repository above spent eighteen script versions on the unbind route. With any process still holding
<code><nowiki>/dev/nvidia*</nowiki></code>, <code><nowiki>echo ... > /sys/bus/pci/drivers/nvidia/unbind</nowiki></code> hangs in the driver's remove path and never
returns; on one of its two cards it hung even with zero handles open, and a <code><nowiki>reboot</nowiki></code> issued in that state stalled the
machine until someone cut the power. Booting with the modules blacklisted sidesteps all of it.

{{Status|Warning}} {{Cards|8 GB}} 
{{Source|repo=https://github.com/polyuij42-del/cmp170hx-vbios-flash}}

=== Others who flashed it with nvflash ===
Several owners did the same flash with stock nvflash before the lab did, on Linux and on Windows; none reported a
brick from it. The bricks reported on the server came from fuse burns, SPI strap edits and A100 cross-flashes, not from
this image.

{{Status|Reported}} {{Cards|8 GB}} 
{{Source|handle=c133|date=2026-08-23|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1541187172588326962}} 
{{Source|handle=c133|date=2026-08-27|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1542649519739769003}} 
{{Source|handle=shirogeek|date=2026-09-06|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1546191972392501369}} 
{{Source|handle=derick2k|date=2026-09-06|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1546163237186441286}} 
{{Source|handle=phoenixone7|date=2026-09-16|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1549930400707514490}} 
{{Source|handle=wakeupmbrc1|date=2026-08-30|link=https://discord.com/channels/1518634379604136178/1518695289278566450/1543658182298173581}}

== Results on eight cards ==
Two of the eight (bus 41 and C1) have FBPA0 fused off (one dead HBM stack each). Both took the image and initialised
cleanly at 1728 MHz; the driver log after the flash matched the log before it line for line in shape (the unlock's
privilege-mask loop prints 54 "Booter failed" lines per card on every boot; that is normal, not damage).

{| class="wikitable"
! Card (bus) !! VBIOS after !! Memory !! Max mem clock !! Default / max cap !! Offset range !! Note
|-
| 0 (01) || 92.00.6D.00.0A || 65536 MiB || 1728 MHz || 250 / 300 W || -1000 .. +1000 ||
|-
| 1 (22) || 92.00.6D.00.0A || 65536 MiB || 1728 MHz || 250 / 300 W || -1000 .. +1000 ||
|-
| 2 (41) || 92.00.6D.00.0A || 65536 MiB || 1728 MHz || 250 / 300 W || -1000 .. +1000 || FBPA0 fused
|-
| 3 (61) || 92.00.6D.00.0A || 65536 MiB || 1728 MHz || 250 / 300 W || -1000 .. +1000 ||
|-
| 4 (81) || 92.00.6D.00.0A || 65536 MiB || 1728 MHz || 250 / 300 W || -1000 .. +1000 ||
|-
| 5 (A1) || 92.00.6D.00.0A || 65536 MiB || 1728 MHz || 250 / 300 W || -1000 .. +1000 ||
|-
| 6 (C1) || 92.00.6D.00.0A || 65536 MiB || 1728 MHz || 250 / 300 W || -1000 .. +1000 || FBPA0 fused
|-
| 7 (C2) || 92.00.6D.00.0A || 65536 MiB || 1728 MHz || 250 / 300 W || -1000 .. +1000 || first attempt aborted by the controller, window re-opened by a PCIe rescan, second write fine
|}
Zero Xids, zero ECC errors, zero RmInitAdapter failures across four cold cycles.

{{Status|Proven}} {{Cards|8 GB}} 
{{Source|handle=darkmaniac7|date=2026-10-31|note=lab notes}}

== What it changed ==
The load is a proof-of-work miner (pearlhash, OneZeroMiner) on all eight cards with the fan wall at 15 % and caps set
per card by a thermal governor (230 to 250 W). The rejected shares below were all "Stale share" (a share submitted after
the pool changed the job: timing, not a wrong answer); there were no invalid shares.

{| class="wikitable"
! State !! Total hashrate !! Core clock range !! Temps !! Notes
|-
| 250 W image, offset 0 || 1,455 TH/s || 1215 to 1290 MHz || 70 to 79 C || baseline, same caps
|-
| 300 W image, offset 0 || 1,459 to 1,470 TH/s || 1215 to 1290 MHz || 70 to 79 C || HBM 1728 MHz cost nothing on a compute load
|-
| 300 W image, GPC offset +100 || 1,525 TH/s || 1275 to 1365 MHz || unchanged || 20 min soak, 0 Xid
|-
| 300 W image, GPC offset +130 || 1,549 TH/s || 1290 to 1380 MHz || unchanged || 20 min soak, 0 Xid
|-
| 300 W image, GPC offset +160 || 1,564 TH/s || 1335 to 1410 MHz || unchanged || 20 min soak, 0 Xid; cool-slot cards at the 1410 MHz ceiling
|}
Power draw stayed at the caps the whole time: the offset lets the core hold a higher clock at the same watts, so the
gain comes with no extra heat. Two cards were held back early by a stale share each (a rule that counted any rejected
share; it should count only invalid ones); they sit at +50 and +80 until re-run.

{{Status|Proven}} {{Cards|8 GB}} 
{{Source|handle=darkmaniac7|date=2026-10-31|note=lab notes}}

== Risks and what the community saw ==
* {{Status|Warning}} One owner advised against the 300 W image because a photo of a burned 170HX had been posted earlier and the board lacks some power-delivery parts of the full layout. The photo is not in the exported history and no post ties a burned card to this image. The image's own default is 250 W; nothing on the lab box sets 300 W, and the undervolt reduces current at a given cap rather than raising it. Keep your cap at or below 250 W until you have a reason and the cooling to go higher. {{Source|handle=xanthefin|date=2026-10-18|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561336153515364444}}
* {{Status|Contested}} HBM at 1728 MHz: one owner on the 300 W image with a 250 W limit passed GPU-burn with no errors but saw sporadic Vulkan memtest errors across the HBM dies; the eight lab cards (Hynix) ran clean. If a card misbehaves at 1728 MHz, 170tune can set the memory clock back down (not on FBPA0-fused cards, where the PLL tool must not write). {{Source|handle=cute_sc2|date=2026-08-08|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1535648815456198667}} {{Source|handle=darkmaniac7|date=2026-10-31|note=lab notes}}
* {{Status|Warning}} A failed flash is recoverable only with an SPI programmer with a 1.8 V adapter (the flash IC is 1.8 V; some "3.3 V" CH341A units put out 5 V, so a CH347 unit whose software selects the voltage is the safer buy). Power loss during the write and the wrong file are the two real ways to get there; both are yours to prevent. {{Source|repo=https://github.com/Consensus-Protocol/cmp170hx}}

== Rollback ==
The same procedure with your saved 92.00.67.00.01 dump as the image: one write per card in a driverless boot, then a
cold cycle. The lab keeps its dump with the rest of the evidence; any card's dump of the same version works for any
card of the same version.

== Files ==
* {{Download|file=CMP170HX_92.00.6D.00.0A.rom|compact=yes}} The 300 W image, byte-identical to TechPowerUp 268495 (hashes above).
* {{Download|file=Vbios_check_rom.py|compact=yes}} Structural ROM check (MIT, from polyuij42-del/cmp170hx-vbios-flash).
* {{Download|file=Vbios_flash_one.py|compact=yes}} The pty controller that answers nvflash's prompt only after it has echoed the expected versions, and checks the bus afterwards.
* {{Download|file=Vbios_window.sh.gz|compact=yes}} The lab's phase script (gzipped: the wiki refuses a shebang script under a plain extension) (check, prep, flash, restore, verify); unit names and bus map are the lab box's.

== Related ==
[[VBIOS and firmware]], [[Undervolting and power limits]], [[Driver unlock]], [[170tune]], [[Troubleshooting]].

{{ImportFooter}}
[[Category:Unlocks]]
[[Category:8 GB]]
[[Category:Cooling and power]]

File:Vbios window.sh.gz

ImportBot — Sat, 31 Oct 2026 13:21:30 GMT

ImportBot uploaded File:Vbios window.sh.gz Upload for Flashing the 300 W VBIOS (lab notes; source on the file page)

New page

{{Download|version=2026-10-31|source=[https://cmp.wiki/wiki/Flashing_the_300_W_VBIOS Flashing the 300 W VBIOS]}}
Phase script for the driverless-boot VBIOS window (check, prep, flash, restore, verify) as run on the lab eight-card box; unit names and the index-to-bus map are that box's, edit before reuse. Gzipped because the wiki refuses a shebang script under any plain extension: gunzip after download. From [[Flashing the 300 W VBIOS]].

File:Vbios flash one.py

ImportBot — Sat, 31 Oct 2026 13:20:40 GMT

ImportBot uploaded File:Vbios flash one.py Upload for Flashing the 300 W VBIOS (lab notes; sources on the file page)

New page

{{Download|version=2026-10-31|source=[https://cmp.wiki/wiki/Flashing_the_300_W_VBIOS Flashing the 300 W VBIOS]}}
Drives one nvflash write or save through a pty and answers the confirm prompt only after nvflash has echoed the expected current and replacement versions; checks the PCI bus from the Results table afterwards. Lab tool written for [[Flashing the 300 W VBIOS]].

File:Vbios check rom.py

ImportBot — Sat, 31 Oct 2026 13:20:39 GMT

ImportBot uploaded File:Vbios check rom.py Upload for Flashing the 300 W VBIOS (lab notes; sources on the file page)

New page

{{Download|version=2026-09-26|source=[https://github.com/polyuij42-del/cmp170hx-vbios-flash polyuij42-del/cmp170hx-vbios-flash on GitHub]}}
Structural check of a CMP 170HX VBIOS image (250 W or 300 W build): NVGI header, power bytes, strap tier, license region, dual-bank mirror. MIT licence, unmodified copy of scripts/check_rom.py. Used on [[Flashing the 300 W VBIOS]].

File:CMP170HX 92.00.6D.00.0A.rom

ImportBot — Sat, 31 Oct 2026 13:20:39 GMT

ImportBot uploaded File:CMP170HX 92.00.6D.00.0A.rom Upload for Flashing the 300 W VBIOS (lab notes; sources on the file page)

New page

{{Download|version=92.00.6D.00.0A|source=[https://www.techpowerup.com/vgabios/268495/268495 TechPowerUp VBIOS database 268495]}}
300 W factory VBIOS 92.00.6D.00.0A for the 8 GB CMP 170HX, byte-identical to TechPowerUp VBIOS database entry 268495 (MD5 a58aae86e72b13d50603c15653350664, SHA1 efad37d514bb94ac345719a0c56d9cd147cddfb7). Signed NVIDIA image, unmodified. Read [[Flashing the 300 W VBIOS]] before using it.

DeepSeek V4.1 Flash heretic on 4x 8 GB

ImportBot — Fri, 30 Oct 2026 10:36:53 GMT

Import: Ivan's lab recipe (lab notes, 2026-10-29): Morrowmake dsv41-flash-cmp170hx-recipe 1.0.0 with pqhaz's heretic patch written into the official checkpoint in place; sources: @darkmaniac7; GitHub Morrowmake/dsv41-flash-cmp170hx-recipe

← Older revision		Revision as of 10:36, 30 October 2026
Line 54:		Line 54:
	# Fetch the patch only: <syntaxhighlight lang="bash" inline>hf download pqhaz/DeepSeek-V4.1-Flash-1017-heretic --include "patch/*" --local-dir heretic</syntaxhighlight>		# Fetch the patch only: <syntaxhighlight lang="bash" inline>hf download pqhaz/DeepSeek-V4.1-Flash-1017-heretic --include "patch/*" --local-dir heretic</syntaxhighlight>
	# Write it into the official checkpoint in place with <code><nowiki>heretic_inplace.py</nowiki></code> (below, stdlib Python only):		# Write it into the official checkpoint in place with <code><nowiki>heretic_inplace.py</nowiki></code> (below, stdlib Python only):
			#: {{Download\|file=Heretic_inplace.py\|compact=yes}} The script applies the heretic patch to the official shards in place, restores them byte-exact from the backup, or reports their status.
	<syntaxhighlight lang="bash">		<syntaxhighlight lang="bash">
	python3 heretic_inplace.py apply <MODELS_DIR>/DeepSeek-V4.1-Flash-1017 heretic/patch/<file>.safetensors stock-wo_b-backup.safetensors		python3 heretic_inplace.py apply <MODELS_DIR>/DeepSeek-V4.1-Flash-1017 heretic/patch/<file>.safetensors stock-wo_b-backup.safetensors
Line 242:		Line 243:
	== Sources ==		== Sources ==
	* Ivan's lab notes, 2026-10-29 (public write-up of the recipe).		* Ivan's lab notes, 2026-10-29 (public write-up of the recipe).
	* The script is ~~offered as a file~~: ~~upload it as <code><nowiki>~~File:~~heretic_inplace~~.py~~</nowiki></code> (trusted uploader, with a <code><nowiki>{{~~Download~~}}</nowiki></code> block) once Ivan approves~~.		* The script is [[:File:Heretic_inplace.py]]; its sha256 is shown in the Download box in the Steps section.

	{{ImportFooter}}		{{ImportFooter}}
	[[Category:8 GB]]		[[Category:8 GB]]

Template:Download

ImportBot — Fri, 30 Oct 2026 10:29:25 GMT

Wiki lane: Download box shows KB below 1 MB

← Older revision		Revision as of 10:29, 30 October 2026
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	<includeonly><templatestyles src="Infobox/styles.css" />{{#if:{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|size}}\|{{#ifeq:{{lc:{{{compact\|}}}}}\|yes\|<span class="cmpw-download-compact">[[Media:{{{file\|{{PAGENAME}}}}}\|{{{file\|{{PAGENAME}}}}}]] <span class="cmpw-muted">({{#expr:{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|size}}/1048576 round 2}} MB, by @{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|uploader}}, [[:File:{{{file\|{{PAGENAME}}}}}\|details]])</span><br /><code>sha256 {{#cmpfile:{{{file\|{{PAGENAME}}}}}\|sha256}}</code></span>\|<div class="cmpw-download">		<includeonly><templatestyles src="Infobox/styles.css" />{{#if:{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|size}}\|{{#ifeq:{{lc:{{{compact\|}}}}}\|yes\|<span class="cmpw-download-compact">[[Media:{{{file\|{{PAGENAME}}}}}\|{{{file\|{{PAGENAME}}}}}]] <span class="cmpw-muted">({{#ifexpr:{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|size}} < 1048576\|{{#expr:{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|size}}/1024 round 1}} KB\|{{#expr:{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|size}}/1048576 round 2}} MB}}, by @{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|uploader}}, [[:File:{{{file\|{{PAGENAME}}}}}\|details]])</span><br /><code>sha256 {{#cmpfile:{{{file\|{{PAGENAME}}}}}\|sha256}}</code></span>\|<div class="cmpw-download">
	'''Download:''' [[Media:{{{file\|{{PAGENAME}}}}}\|{{{file\|{{PAGENAME}}}}}]] ({{#expr:{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|size}}/1048576 round 2}} MB)<br />		'''Download:''' [[Media:{{{file\|{{PAGENAME}}}}}\|{{{file\|{{PAGENAME}}}}}]] ({{#ifexpr:{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|size}} < 1048576\|{{#expr:{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|size}}/1024 round 1}} KB\|{{#expr:{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|size}}/1048576 round 2}} MB}})<br />
	'''Version:''' {{{version\|<span class="cmpw-bad">not given</span>}}}<br />		'''Version:''' {{{version\|<span class="cmpw-bad">not given</span>}}}<br />
	'''Upstream source:''' {{#if:{{{source\|}}}\|{{{source}}}\|<span class="cmpw-bad">not given</span>}}<br />		'''Upstream source:''' {{#if:{{{source\|}}}\|{{{source}}}\|<span class="cmpw-bad">not given</span>}}<br />

File:Heretic inplace.py

ImportBot — Fri, 30 Oct 2026 10:28:08 GMT

ImportBot uploaded File:Heretic inplace.py heretic_inplace.py (2026-10-29), Ivan's lab, MIT

New page

'''heretic_inplace.py''' applies the pqhaz "heretic" FP8 patch to the <code>attn.wo_b</code> weights of the official
DeepSeek V4.1 Flash shards, in place, for engines that read attention weights straight from the official checkpoint.
Only the 38 <code>layers.N.attn.wo_b.weight</code> tensors change (same dtype F8_E4M3, same shape, same offsets); the
FP8 scales are untouched. Three commands: <code>apply</code>, <code>restore</code> and <code>status</code>. Python
standard library only.

{{Download|version=2026-10-29|source=[https://cmp.wiki/wiki/User:Darkmaniac7 Ivan's lab (@darkmaniac7)]|expected_sha256=5c2e6a96b424ba5c6b2983bf06953704f0dd63e51c3beb5ef25e5a73cea44343|notes=Used by [[DeepSeek V4.1 Flash heretic on 4x 8 GB]].}}

== Usage ==
<pre>
heretic_inplace.py apply OFFICIAL_DIR PATCH.safetensors BACKUP.safetensors
heretic_inplace.py restore OFFICIAL_DIR PATCH.safetensors BACKUP.safetensors
heretic_inplace.py status OFFICIAL_DIR PATCH.safetensors BACKUP.safetensors
</pre>
* <code>OFFICIAL_DIR</code>: the official DeepSeek-V4.1-Flash-1017 checkpoint (with <code>model.safetensors.index.json</code>).
* <code>apply</code> first writes an exact byte backup of every original tensor (a safetensors file with the same names),
then overwrites, fsyncs and reads back. It refuses a shard that has more than one hard link, and refuses to run when
a tensor is already patched and there is no backup.
* <code>restore</code> writes the backup back; <code>status</code> counts tensors that are patched, stock (match the
backup) or neither. Both are safe to repeat: a tensor already in the wanted state is skipped.

== License ==
MIT (the file carries no license header).

{{Source|darkmaniac7|2026-10-29|note=lab notes}}

User:ImportBot

Maintenance script — Fri, 30 Oct 2026 10:27:26 GMT

Maintenance script changed group membership for ImportBot from bot to bot and trusted uploader

Rumours and claims to verify

ImportBot — Fri, 30 Oct 2026 10:12:24 GMT

Import (V2): register of unverified claims from the cmpunlocker Discord, @ob88594, @wakeupmbrc1, @djpandaman, @aaasss1456, @analyticeth, @douya4305, @rrickk420, @bigptoughneigh, @cuddylac997, @zingy90210, @exile_1ck, @cute_sc2, @_____josh_____, @matstatman, @colo2442, @scallion_9883, @xanthefin, @feralzi, @kellertreppe123 and others

Show changes

RIR fuse burn

ImportBot — Fri, 30 Oct 2026 10:12:23 GMT

The permanent RIR fuse burn that clears disable_sw_override on the 10 GB card, the one write that opens Gen3, full SM and the 6th stack; commands from lixiangwuxian/170hx-rir-tool; Discord Oct 2026.; sources: @_orrorin, @scallion_9883, @lxtend, @djpandaman, @lycorascence, @xeax, @ob88594, @petrikrohn_26497, @aaasss1456, @analyticeth, @wakeupmbrc1, @zorg33; GitHub evanrodgers/cmp-170hx-rir-burn-util, lixiangwuxian/170hx-rir-tool

← Older revision		Revision as of 10:12, 30 October 2026
Line 110:		Line 110:
	* '''xeax's notes''' (<code>message.txt</code>, 7,381 B) accompany the 170hx-rir-tool link with the warning not to brick		* '''xeax's notes''' (<code>message.txt</code>, 7,381 B) accompany the 170hx-rir-tool link with the warning not to brick
	the card and the fuse-slot write count. {{Source\|xeax\|2026-10-25\|https://discord.com/channels/1518634379604136178/1534370835220004885/1563757491659997316}}		the card and the fuse-slot write count. {{Source\|xeax\|2026-10-25\|https://discord.com/channels/1518634379604136178/1534370835220004885/1563757491659997316}}
	* '''Paid service:''' a third party in Chengdu was reported to unlock a 10 GB card for about 500 USD; the ~~card then~~		* '''Paid service:''' a third party in Chengdu was reported to unlock a 10 GB card for about 500 USD. {{Source\|handle=ob88594\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1558162519070216295}} aaasss said a friend had a 10 GB card done at the factory the day before ("8912 cuda core", as posted) and that it was paid software, maybe VBIOS. {{Source\|handle=aaasss1456\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1558164230073753630}}<br />{{Source\|handle=aaasss1456\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1558164394951573627}} The vendor's text, quoted by AnalyticETH: all changes are permanent in the card, no third-party unlocking software or driver patches, it identifies as an original A100; the first batch takes 10 GB cards and the 8 GB version is "still under development". {{Source\|handle=analyticeth\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1558168182563545140}}<br />{{Source\|handle=analyticeth\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1558168218487623782}} Miséricorde read it as this same RIR macro burn, not a VBIOS change, and asked how it would then identify as an A100 40G. {{Source\|handle=wakeupmbrc1\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1558168562542317812}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1558168720134774805}} Treat as hearsay.
	~~identifies~~ as ~~an A100 40G (8192 CUDA cores on a full card~~), ~~the~~ vendor's text ~~saying~~ all changes are permanent ~~with~~
	no third-party software or driver ~~patch~~. Miséricorde read it as this same RIR macro burn, ~~possibly with~~ a VBIOS ~~edit~~
	~~for the~~ A100 ~~identity; the 8 GB version was said to be "under development"~~. ~~Treat as hearsay~~.
	{{Source\|~~aaasss1456~~\|2026-10-09\|https://discord.com/channels/1518634379604136178/1518695328008638516/~~1558164230073753630~~}}

	== Known issues / warnings ==		== Known issues / warnings ==

Price history and market

ImportBot — Fri, 30 Oct 2026 10:12:23 GMT

Import: dated CMP 170HX price reports and market notes from #suppliers-chat, #general, #hardware and #development-general, @djpandaman, @wakeupmbrc1, @kellertreppe123, @ob88594, @voidgiraffe, @spectakkular, @lenxtroz, @feralzi, @lia_oc, @gnasherrr, @busulle, @_____josh_____, @c133, @markshowa and others

Show changes

Other CMP cards and other NVIDIA GPUs

ImportBot — Fri, 30 Oct 2026 10:12:22 GMT

Import: other CMP models (90HX, 50HX, 40HX, 30HX, 70HX, 100-210), the A100 relation, and unlock work on other NVIDIA GPUs, @emogop, @zagitta, @djpandaman, @xeax, @green_dam, @jma1753, @68x0, @endsjeremy, @ob88594, @lenxtroz, @arabus_74064, @grapepepper, @sojun80, @danske1, @petrikrohn_26497, @programmerboi, @scallion_9883, @wakeupmbrc1, @peter643; repos Zagitta/gpu-unlock, JustAResearcher/gpu-unlock-ada, unitypit71/rtx4070tisuper-tensor-unlock, dartraiden/NVIDIA-patcher, mint

Show changes

CMP 170HX

ImportBot — Fri, 30 Oct 2026 10:12:21 GMT

Import: what the CMP 170HX is, @markshowa, @civiloid, @djpandaman, @cute_sc2, @wakeupmbrc1, @endsjeremy, @c133, @darkmaniac7, @exile_1ck, @wingrimez_40467, @ghostinthedatacenter_87281, @dalzyyy; gap-fill from #general 2026-10-24 (release timeline, credited summary), @petrikrohn_26497

← Older revision		Revision as of 10:12, 30 October 2026
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	* '''Memory size''' limited to 8 GB or 10 GB of the HBM on the package.		* '''Memory size''' limited to 8 GB or 10 GB of the HBM on the package.
	* '''PCIe''' at Gen1 x4, as above.		* '''PCIe''' at Gen1 x4, as above.
	* '''NVLink''' fused off and its board parts left out. '''ECC''' disabled. '''Resizable BAR''' limited to 64 MiB. '''~~No graphics~~ APIs''': CUDA and OpenCL only.		* '''NVLink''' fused off and its board parts left out. '''ECC''' disabled. '''Resizable BAR''' limited to 64 MiB. '''Graphics APIs''': the specification page lists CUDA and OpenCL only.
	{{Source\|handle=markshowa\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561324784598384784\|repo=https://github.com/amoghmunikote/170th-Street}}		{{Source\|handle=markshowa\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561324784598384784\|repo=https://github.com/amoghmunikote/170th-Street}}
			* {{Status\|Contested}} '''Graphics in practice.''' Members disagree, in the order posted: one said there is no DirectX, OpenGL or Vulkan support; {{Source\|handle=lenxtroz\|date=2026-10-15\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1560243206505889843}} another answered that Vulkan "is what the inference runs on"; {{Source\|handle=honzapat_cz\|date=2026-10-15\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1560244068309532745}} xeax said somebody tried gaming and "it works, its not great"; {{Source\|handle=xeax\|date=2026-10-15\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1560248546664517724}} peter643 ran Minecraft with shaders at 1080p at about 160 fps and about 60 W after enabling vertex work on all 74 SMs, marginally faster than his RTX 3060. {{Source\|handle=peter643\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562209548130062348}} Details: [[Other CMP cards and other NVIDIA GPUs#Graphics on a 170HX]].

	'''Why.''' The CMP line was NVIDIA's answer to the 2021 GPU shortage: dedicated mining cards meant to be useless for gaming and general compute, so they would not compete with GeForce or data-center products. The 170HX was the only CMP model NVIDIA built itself, from GA100 dies that did not make the A100 bin. {{Source\|handle=markshowa\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561324784598384784\|repo=https://github.com/amoghmunikote/170th-Street}} The A100 hides bad HBM blocks by itself; on the 170HX owners have to mark them by hand at boot (see [[8 GB card#Memory]]). {{Source\|handle=cute_sc2\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556661094272073809}} The fuses that enforce the cut are electrical fuses inside the GPU die, not on the board. {{Source\|handle=wakeupmbrc1\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1559797674931265647}}		'''Why.''' The CMP line was NVIDIA's answer to the 2021 GPU shortage: dedicated mining cards meant to be useless for gaming and general compute, so they would not compete with GeForce or data-center products. The 170HX was the only CMP model NVIDIA built itself, from GA100 dies that did not make the A100 bin. {{Source\|handle=markshowa\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561324784598384784\|repo=https://github.com/amoghmunikote/170th-Street}} The A100 hides bad HBM blocks by itself; on the 170HX owners have to mark them by hand at boot (see [[8 GB card#Memory]]). {{Source\|handle=cute_sc2\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556661094272073809}} The fuses that enforce the cut are electrical fuses inside the GPU die, not on the board. {{Source\|handle=wakeupmbrc1\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1559797674931265647}}

Buying

ImportBot — Fri, 30 Oct 2026 10:12:20 GMT

Import: buying guide: 8 GB vs 10 GB, prices, named sellers, scams, payment, shipping; @kellertreppe123, @djpandaman, @spectakkular, @wakeupmbrc1, @endsjeremy, @_____josh_____, @matstatman, @globalapathy, @gnasherrr, @voidgiraffe, @ob88594, @lia_oc, @lenxtroz, @sojun80; repos PixelML/club-170hx, dev-boz/cmp170hx-testsuite, evanrodgers/cmp-170hx-rir-burn-util; lab notes; gap-fill from #general 2026-10-23 to 10-26: @feralzi, @kellertreppe123, @froggao, @phoenixone7, @djpandaman,

← Older revision		Revision as of 10:12, 30 October 2026
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	\| 2026-10-01 \|\| eBay US, sold \|\| 8 GB \|\| 1,900 USD \|\| {{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1559075077528616961}}		\| 2026-10-01 \|\| eBay US, sold \|\| 8 GB \|\| 1,900 USD \|\| {{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1559075077528616961}}
	\|-		\|-
	\| 2026-10-04 \|\| Xianyu sellers, quote \|\| ~~8 GB~~ \|\| 1,800 to 1,900 USD ~~before duties and shipping~~ \|\| {{Source\|handle=voidgiraffe\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/~~1556258101596782593~~}}		\| 2026-10-04 \|\| Xianyu, one seller (wanted payment in USDT), quote \|\| not stated \|\| about 1,850 USD, not including import duties or shipping \|\| {{Source\|handle=voidgiraffe\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556207433670721597}}<br />{{Source\|handle=voidgiraffe\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556258101596782593}}
			\|-
			\| 2026-10-06 \|\| Xianyu, two sellers, quote \|\| not stated \|\| 1,800 to 1,900 USD \|\| {{Source\|handle=voidgiraffe\|date=2026-10-06\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556984655566340129}}
	\|-		\|-
	\| 2026-10-04 to 10-07 \|\| Alibaba, Ailfond (Alifond) \|\| 8 GB \|\| 2,400 USD, then 2,299 to 2,599, then 2,699 on 10-07; an order was cancelled at the increase \|\| {{Source\|handle=cute_sc2\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1556208333373972491}}<br />{{Source\|handle=lenxtroz\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1556236658322702348}}<br />{{Source\|handle=busulle\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1556512895150325863}}<br />{{Source\|handle=cibernox\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557431843601649738}}		\| 2026-10-04 to 10-07 \|\| Alibaba, Ailfond (Alifond) \|\| 8 GB \|\| 2,400 USD, then 2,299 to 2,599, then 2,699 on 10-07; an order was cancelled at the increase \|\| {{Source\|handle=cute_sc2\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1556208333373972491}}<br />{{Source\|handle=lenxtroz\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1556236658322702348}}<br />{{Source\|handle=busulle\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1556512895150325863}}<br />{{Source\|handle=cibernox\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557431843601649738}}
Line 220:		Line 222:
	* Most foreign-facing sellers are middlemen who buy on Xianyu and resell on eBay. {{Source\|handle=ob88594\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556307441422041149}}		* Most foreign-facing sellers are middlemen who buy on Xianyu and resell on eBay. {{Source\|handle=ob88594\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556307441422041149}}
	* {{Status\|Warning}} Buying agents such as Superbuy, and Goofish forwarding, have no GPU test bench. One buyer's CMP cards bought that way arrived dead. {{Source\|handle=kellertreppe123\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1563880995692740689}}<br />{{Source\|handle=kellertreppe123\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1563881100261072907}} For other goods they work well. {{Source\|handle=lia_oc\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559255557162930197}} Agents earn on the exchange rate and shipping; negotiate with the seller first and have the agent use that price. {{Source\|handle=spectakkular\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559253481574113341}}<br />{{Source\|handle=spectakkular\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559254307746877625}} @spectakkular's guess: agents negotiate a discount with the seller after you submit the order, before they place it (which is why placing takes them ages), and keep the spread. @djpandaman had a Taobao order from Bykski (fittings, pumps) discounted about 40 percent off the listed price once it was in the cart, and does not know whether Superbuy would have passed that discount on. {{Source\|handle=spectakkular\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559253569037795460}}<br />{{Source\|handle=spectakkular\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559253739326541905}}<br />{{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559253788798353580}} Superbuy adds 5 percent to the exchange rate in its estimates, and its cache shows old listing prices. {{Source\|handle=spectakkular\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1558747112710209577}}<br />{{Source\|handle=spectakkular\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1558747573596983328}}		* {{Status\|Warning}} Buying agents such as Superbuy, and Goofish forwarding, have no GPU test bench. One buyer's CMP cards bought that way arrived dead. {{Source\|handle=kellertreppe123\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1563880995692740689}}<br />{{Source\|handle=kellertreppe123\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1563881100261072907}} For other goods they work well. {{Source\|handle=lia_oc\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559255557162930197}} Agents earn on the exchange rate and shipping; negotiate with the seller first and have the agent use that price. {{Source\|handle=spectakkular\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559253481574113341}}<br />{{Source\|handle=spectakkular\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559254307746877625}} @spectakkular's guess: agents negotiate a discount with the seller after you submit the order, before they place it (which is why placing takes them ages), and keep the spread. @djpandaman had a Taobao order from Bykski (fittings, pumps) discounted about 40 percent off the listed price once it was in the cart, and does not know whether Superbuy would have passed that discount on. {{Source\|handle=spectakkular\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559253569037795460}}<br />{{Source\|handle=spectakkular\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559253739326541905}}<br />{{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559253788798353580}} Superbuy adds 5 percent to the exchange rate in its estimates, and its cache shows old listing prices. {{Source\|handle=spectakkular\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1558747112710209577}}<br />{{Source\|handle=spectakkular\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1558747573596983328}}
	* {{Status\|Theory}} A local tech agent in China who checks hardware before export, for about a 10 percent fee. At least one member uses one; nobody named one or reported results. {{Source\|handle=endsjeremy\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1563881270079913995}}<br />{{Source\|handle=endsjeremy\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1563882730356211813}}		* {{Status\|Theory}} A local tech agent in China who checks hardware before export, for about a 10 percent fee. At least one member uses one; nobody named one or reported results. {{Source\|handle=endsjeremy\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1563881270079913995}}<br />{{Source\|handle=endsjeremy\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1563882730356211813}} @djpandaman buys through an Alibaba agent and thinks its 10 percent fee is too high. {{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559254486164439092}}
	* In person: Huaqiangbei in Shenzhen is unlikely to have them openly. {{Source\|handle=_arcanum_\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1559917884858437663}}<br />{{Source\|handle=daveedcoles\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1560046244712161362}} @wakeupmbrc1 orders through Taobao or Goofish to Horgos and collects the cards there. {{Source\|handle=wakeupmbrc1\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1560814425298968637}}		* In person: Huaqiangbei in Shenzhen is unlikely to have them openly. {{Source\|handle=_arcanum_\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1559917884858437663}}<br />{{Source\|handle=daveedcoles\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1560046244712161362}} @wakeupmbrc1 orders through Taobao or Goofish to Horgos and collects the cards there. {{Source\|handle=wakeupmbrc1\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1560814425298968637}}
	* Buying on Xianyu directly avoids tariffs and is cheaper than AliExpress, but even a member with that access called it a hassle. {{Source\|handle=gnasherrr\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1564072211210309663}}<br />{{Source\|handle=gnasherrr\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1564072307398549616}}		* Buying on Xianyu directly avoids tariffs and is cheaper than AliExpress, but even a member with that access called it a hassle. {{Source\|handle=gnasherrr\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1564072211210309663}}<br />{{Source\|handle=gnasherrr\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1564072307398549616}}

10 GB card

ImportBot — Fri, 30 Oct 2026 10:12:13 GMT

Import: everything for the 10 GB card, @lxtend, @djpandaman, @wakeupmbrc1, @ob88594, @scallion_9883, @lycorascence, @colo2442, @lia_oc, @feralzi, @programmerboi, @ghostinthedatacenter_87281, @zorg33; gap-fill from #general 2026-10-22 to 10-26: @djpandaman, @xeax, @_orrorin, @ob88594, @feralzi

← Older revision		Revision as of 10:12, 30 October 2026
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	* Dump the fuses before paying for a used 10 GB card: cards with wasted RIR records and no unlock are expected on the used market. {{Source\|handle=dottoreargus\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562149898311180342}}		* Dump the fuses before paying for a used 10 GB card: cards with wasted RIR records and no unlock are expected on the used market. {{Source\|handle=dottoreargus\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562149898311180342}}
	* Reported prices: about 200 USD per card before the unlock news; {{Source\|handle=cuddylac997\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1557383580106227724}} all 10 GB cards had vanished from listings by 2026-10-07; {{Source\|handle=kellertreppe123\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557444599318974566}} in China the 10 GB card cost about 20,000 RMB on 2026-10-13, more than an 8 GB card, because it is a fully unlockable GA100; {{Source\|handle=wakeupmbrc1\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559705027709509685}} one sold "for parts" on eBay for 1,200 USD worked and unlocked to 40 GB. {{Source\|handle=programmerboi\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563753581637537904}}		* Reported prices: about 200 USD per card before the unlock news; {{Source\|handle=cuddylac997\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1557383580106227724}} all 10 GB cards had vanished from listings by 2026-10-07; {{Source\|handle=kellertreppe123\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557444599318974566}} in China the 10 GB card cost about 20,000 RMB on 2026-10-13, more than an 8 GB card, because it is a fully unlockable GA100; {{Source\|handle=wakeupmbrc1\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559705027709509685}} one sold "for parts" on eBay for 1,200 USD worked and unlocked to 40 GB. {{Source\|handle=programmerboi\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563753581637537904}}
	* '''Paid unlock services in China.''' {{Status\|Contested}} Hearsay, not verified on the Discord. A third party was said to sell a permanent 10 GB unlock for about USD 500 (Chengdu), pitched as more than an A100 40G PCIe, with NVLink extra. {{Source\|handle=ob88594\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1558114667325423759}}<br />{{Source\|handle=ob88594\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1558116548130906113}} The card then identifies as an A100 with no driver patches; Miséricorde reads it as an RIR macro burn. {{Source\|handle=wakeupmbrc1\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1558168562542317812}} The unlocking merchants on Xianyu were swamped and took the service down. {{Source\|handle=ob88594\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1559045761071714396}} The Xianyu seller offering a permanent unlock to A100 says only a few cards can reach 48 GB, and days before launching the service he had asked lxwx to sell his 10 GB cards back at market price. {{Source\|handle=lxtend\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1560911159681359913}}<br />{{Source\|handle=lxtend\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1560912845359681670}} Be careful with private unlock claims: a screenshot is easier to fake than a result when money is involved, and nobody has NVIDIA's production keys. {{Source\|handle=djpandaman\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561026808177229920}}		* '''Paid unlock services in China.''' {{Status\|Contested}} Hearsay, not verified on the Discord. A third party was said to sell a permanent 10 GB unlock for about USD 500 (Chengdu), pitched as more than an A100 40G PCIe, with NVLink extra. {{Source\|handle=ob88594\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1558114667325423759}}<br />{{Source\|handle=ob88594\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1558116548130906113}}<br />{{Source\|handle=ob88594\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1558162519070216295}} The card then identifies as an A100 with no driver patches; Miséricorde reads it as an RIR macro burn. {{Source\|handle=wakeupmbrc1\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1558168562542317812}} The unlocking merchants on Xianyu were swamped and took the service down. {{Source\|handle=ob88594\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1559045761071714396}} The Xianyu seller offering a permanent unlock to A100 says only a few cards can reach 48 GB, and days before launching the service he had asked lxwx to sell his 10 GB cards back at market price. {{Source\|handle=lxtend\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1560911159681359913}}<br />{{Source\|handle=lxtend\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1560912845359681670}} Be careful with private unlock claims: a screenshot is easier to fake than a result when money is involved, and nobody has NVIDIA's production keys. {{Source\|handle=djpandaman\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561026808177229920}}

	== See also ==		== See also ==

Full SM unlock/Confirmation 1

ImportBot — Fri, 30 Oct 2026 10:02:54 GMT

GhostInTheDatacenter reached 128 SM on a 10 GB card, reproducing the RIR-plus-software method.; sources: @ghostinthedatacenter_87281, @68x0

← Older revision		Revision as of 10:02, 30 October 2026
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	\|cards=10 GB		\|cards=10 GB
	\|result=Reproduced		\|result=Reproduced
	\|numbers=128 SM on a 10 GB card ~~after~~ the ~~RIR burn, starting~~ from 170hx-rir-tool.		\|numbers=128 SM on a 10 GB card, shown in screenshots (the posts carry no SM number in text); started from 170hx-rir-tool.
	\|notes=mrpandagod and lxwx established the 10 GB SM unlock; GhostInTheDatacenter reproduced it ("Finally!!!", ~~then 128 SM~~ on 2026-10-26), as did orrorin and Waypoint. {{Source\|ghostinthedatacenter_87281\|2026-10-19\|https://discord.com/channels/1518634379604136178/1518695328008638516/1561875502824816832}}		\|notes=mrpandagod and lxwx established the 10 GB SM unlock; GhostInTheDatacenter reproduced it ("Finally!!!" with a screenshot on 2026-10-19, a second screenshot on 2026-10-26), as did orrorin and Waypoint. The route through the RIR burn is 68x0's line ("You can unlock more SMs with the RIR burn"), which GhostInTheDatacenter confirmed ("Exactly"). {{Source\|ghostinthedatacenter_87281\|2026-10-19\|https://discord.com/channels/1518634379604136178/1518695328008638516/1561875502824816832}}<br />{{Source\|handle=ghostinthedatacenter_87281\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1564100458023358584}}<br />{{Source\|handle=68x0\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1564103821922275432}}<br />{{Source\|handle=ghostinthedatacenter_87281\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1564103887009484901}}
	}}		}}

	{{ImportFooter}}		{{ImportFooter}}
	[[Category:Confirmations]]		[[Category:Confirmations]]

Which card do I have

ImportBot — Fri, 30 Oct 2026 10:02:51 GMT

Import: telling the 8 GB and 10 GB cards apart, @djpandaman, @wakeupmbrc1, @rh3dai, @matstatman, @dalzyyy, @spectakkular, @zagitta, @boz._., @darkshad03, @xeax, @c133, @newman_08462; gap-fill from #general 2026-10-24 (Titan V and CMP 100HX), @endsjeremy, @c07f, @xeax

← Older revision		Revision as of 10:02, 30 October 2026
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	\|}		\|}
	* The 8 GB card unlocks to 64 GB, 74 SMs and Gen2; the 10 GB card unlocks to 40 GB (48 GB with a good sixth stack) but gets 128 SMs, better interconnect and faster compute. Neither is strictly better: for LLMs memory matters most, for diffusion the 10 GB card is better. {{Source\|handle=wakeupmbrc1\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557273173173739585}}		* The 8 GB card unlocks to 64 GB, 74 SMs and Gen2; the 10 GB card unlocks to 40 GB (48 GB with a good sixth stack) but gets 128 SMs, better interconnect and faster compute. Neither is strictly better: for LLMs memory matters most, for diffusion the 10 GB card is better. {{Source\|handle=wakeupmbrc1\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557273173173739585}}
	* {{Status\|Proven}} The 8 GB card unlocks to 64 GB. Eight unlocked 8 GB cards in one dump all reported 65536 MiB, {{Source\|handle=newman_08462\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1558178969264848927}} and 64 GB is the maximum confirmed on a production 8 GB card. {{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/~~1559043975128682498~~}}		* {{Status\|Proven}} The 8 GB card unlocks to 64 GB. Eight unlocked 8 GB cards in one dump all reported 65536 MiB, {{Source\|handle=newman_08462\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1558178969264848927}} and 64 GB is the maximum confirmed on a production 8 GB card. {{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559044323545456671}}
	* {{Status\|Proven}} The 10 GB card unlocks to 40 GB, and most cards stop there. {{Source\|handle=zorg33\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557343927336697877}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557420925941710921}}<br />{{Source\|handle=programmerboi\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563753581637537904}}		* {{Status\|Proven}} The 10 GB card unlocks to 40 GB, and most cards stop there. {{Source\|handle=zorg33\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557343927336697877}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557420925941710921}}<br />{{Source\|handle=programmerboi\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563753581637537904}}
	* {{Status\|Reported}} 48 GB needs a good sixth stack (a non-defective sixth FBP), about 1 card in 5: 6 of 30 cards mrpandagod saw tested could do it, {{Source\|handle=djpandaman\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1560920383782260797}} and the estimate on the Discord is 20% or less. {{Source\|handle=artistosu\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1564127408305479803}}		* {{Status\|Reported}} 48 GB needs a good sixth stack (a non-defective sixth FBP), about 1 card in 5: 6 of 30 cards mrpandagod saw tested could do it, {{Source\|handle=djpandaman\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1560920383782260797}} and the estimate on the Discord is 20% or less. {{Source\|handle=artistosu\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1564127408305479803}}
	* The RIR path is 10 GB only: its RIR rows are not blown, so a software fuse remask can be enabled. {{Source\|handle=wakeupmbrc1\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562401655239213067}} On 8 GB cards most fuses are burnt and locked out. {{Source\|handle=68x0\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1564103978130870484}}		* The RIR path is 10 GB only: its RIR rows are not blown, so a software fuse remask can be enabled. {{Source\|handle=lxtend\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562401359465029663}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562401655239213067}}<br />{{Source\|handle=lxtend\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562401595927433317}} On 8 GB cards most fuses are burnt and locked out. {{Source\|handle=68x0\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1564103978130870484}}
	* 10 GB unlocked cards land at 112, 122 or 128 SMs. {{Source\|handle=wakeupmbrc1\|date=2026-10-27\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1564684153704939573}}		* 10 GB unlocked cards land at 112, 122 or 128 SMs. {{Source\|handle=wakeupmbrc1\|date=2026-10-27\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1564684153704939573}}
	The full table with bandwidth, power and prices is on [[Variant comparison]].		The full table with bandwidth, power and prices is on [[Variant comparison]].
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	* '''Single-rank 8 GB cards.''' A community report describes 8 GB cards that stop at 32 GB after unlock (single-rank) next to the normal dual-rank 64 GB cards; three of four cards in that report were dual-rank. A faked 64 GB unlock on such a card passes <code><nowiki>memtest_vulkan</nowiki></code> but fails a CUDA memtest, so validate with a CUDA-side test. {{Source\|handle=c133\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1562161732137386127\|repo=https://github.com/PixelML/club-170hx}} Whether these are the same boards as the engineering samples above is not known.		* '''Single-rank 8 GB cards.''' A community report describes 8 GB cards that stop at 32 GB after unlock (single-rank) next to the normal dual-rank 64 GB cards; three of four cards in that report were dual-rank. A faked 64 GB unlock on such a card passes <code><nowiki>memtest_vulkan</nowiki></code> but fails a CUDA memtest, so validate with a CUDA-side test. {{Source\|handle=c133\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1562161732137386127\|repo=https://github.com/PixelML/club-170hx}} Whether these are the same boards as the engineering samples above is not known.
	* '''Fakes and transplants.''' The reported overall failure rate for bought cards is about 20%. Fake cards have been reported, and one "CMP" turned out to carry a die transplanted from a 32 GB A100. {{Source\|handle=civiloid\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559465371696898182}}		* '''Fakes and transplants.''' The reported overall failure rate for bought cards is about 20%. Fake cards have been reported, and one "CMP" turned out to carry a die transplanted from a 32 GB A100. {{Source\|handle=civiloid\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559465371696898182}}
	* '''Other CMP cards.''' The CMP 90HX, 100-210 and the rest are different silicon. Do not confuse a 10 GB CMP 90HX with the 10 GB 170HX: an unlocked 90HX is 3090-class compute but keeps 10 GB of GDDR6X. {{Source\|handle=javicabrera_30495\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1561394694305353729}} A listing that says only "CMP 8GB" may not be a 170HX; check that it says 170HX. {{Source\|handle=djpandaman\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1558734002565816451}} This wiki covers the 170HX.		* '''Other CMP cards.''' The CMP 90HX, 100-210 and the rest are different silicon. Do not confuse a 10 GB CMP 90HX with the 10 GB 170HX: an unlocked 90HX is 3090-class compute but keeps 10 GB of GDDR6X. {{Source\|handle=javicabrera_30495\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1561394694305353729}} The Titan V is GV100 (Volta, like the V100), not GA100, so it is no relative of the 170HX; its mining counterpart is the CMP 100HX (100-210). This came up when comet1310 asked whether a Titan V can be unlocked to 16 GB. {{Source\|handle=c07f\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563459325278814231}}<br />{{Source\|handle=endsjeremy\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563499947305992254}}<br />{{Source\|handle=endsjeremy\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563499991899574377}}<br />{{Source\|handle=c07f\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563500918987685958}} Not every one of those can be modded: there are different revisions and you have to test; some have been unlocked, but at V100 prices it is not very lucrative (xeax). {{Source\|handle=xeax\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563517994955448361}}<br />{{Source\|handle=xeax\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563518185599148104}}<br />{{Source\|handle=xeax\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563518427652562955}} A listing that says only "CMP 8GB" may not be a 170HX; check that it says 170HX. {{Source\|handle=djpandaman\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1558734002565816451}} This wiki covers the 170HX.
	If you are buying, see [[Buying]] and test before you pay.		If you are buying, see [[Buying]] and test before you pay.

Water cooling

ImportBot — Fri, 30 Oct 2026 10:02:45 GMT

Water blocks and AIOs for the CMP 170HX, installation, pads and paste, results and risks; from the cmpunlocker Discord (2026-10-04 to 10-27, including the Custom Water block thread) and amoghmunikote/170th-Street; gap-fill from #general 2026-10-22 to 10-25 (pumps, liquid-cooled cards, delid), @_syn_thetic_, @wakeupmbrc1, @munisix, @zingy90210, @danske1, @siriusrhi, @markshowa, @gnasherrr

← Older revision		Revision as of 10:02, 30 October 2026
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	* Price: under $400 for the dual version on Taobao before shipping, list price 2,600 to 2,900 RMB {{Source\|handle=_arcanum_\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1556176261703925861}}; $250 per dual unit with a $100 Taobao coupon plus a Bykski discount, $500 for two shipped to Korea {{Source\|handle=artistosu\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1556178792190320735}}; formulamod and astralcooler.com add about $250 shipping to the USA {{Source\|handle=globalapathy\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1556154312827346985}}. Prices rose after the 170HX unlock. {{Source\|handle=artistosu\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1556180898037375077}}		* Price: under $400 for the dual version on Taobao before shipping, list price 2,600 to 2,900 RMB {{Source\|handle=_arcanum_\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1556176261703925861}}; $250 per dual unit with a $100 Taobao coupon plus a Bykski discount, $500 for two shipped to Korea {{Source\|handle=artistosu\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1556178792190320735}}; formulamod and astralcooler.com add about $250 shipping to the USA {{Source\|handle=globalapathy\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1556154312827346985}}. Prices rose after the 170HX unlock. {{Source\|handle=artistosu\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1556180898037375077}}
	* {{Status\|Reported}} The radiator in the TinyWhale AIO version is aluminium while the block is copper. {{Source\|handle=globalapathy\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1545982693903306813/1564381243691507803}} Mixing aluminium into a copper and brass loop invites galvanic corrosion; @_syn_thetic_ suggests a partial refund and a copper radiator. {{Source\|handle=_syn_thetic_\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562136996699443232}}		* {{Status\|Reported}} The radiator in the TinyWhale AIO version is aluminium while the block is copper. {{Source\|handle=globalapathy\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1545982693903306813/1564381243691507803}} Mixing aluminium into a copper and brass loop invites galvanic corrosion; @_syn_thetic_ suggests a partial refund and a copper radiator. {{Source\|handle=_syn_thetic_\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562136996699443232}}
			* {{Status\|Reported}} '''Cards sold already liquid-cooled.''' PJ (@zingy90210) bought CMP 170HX cards fitted with liquid coolers from a local seller in Sydney (photos posted); the seller can also do the water-cooling conversion for you. @danske1 had seen these coolers on eBay. @siriusrhi's objection: that style needs an AIO and a 240 mm radiator per card, so four cards means mounting four 240 mm radiators; he prefers a custom loop (see [[Chassis builds#Cases]]). Prices are on [[Buying#Prices as reported]]. Summary of their posts; see [https://discord.com/channels/1518634379604136178/1518692084729511967/1563805623613923389 Discord]. {{Source\|handle=zingy90210\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563805623613923389}}<br />{{Source\|handle=zingy90210\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563805642488152077}}<br />{{Source\|handle=danske1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563806011578523692}}<br />{{Source\|handle=siriusrhi\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563807579086258258}}<br />{{Source\|handle=zingy90210\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563815150807547915}}
	* An AIO-cooled card can run in a desktop with a riser cable or OCuLink from an M.2 slot, or with the radiator sitting outside the case. Check the PSU first. {{Source\|handle=robbbbbb7973\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561267848729591880}}<br />{{Source\|handle=globalapathy\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561275681499783230}}<br />{{Source\|handle=boz._.\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561341400308645929}}		* An AIO-cooled card can run in a desktop with a riser cable or OCuLink from an M.2 slot, or with the radiator sitting outside the case. Check the PSU first. {{Source\|handle=robbbbbb7973\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561267848729591880}}<br />{{Source\|handle=globalapathy\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561275681499783230}}<br />{{Source\|handle=boz._.\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561341400308645929}}

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	* {{Status\|Reported}} Under the IHS is paste, apparently a phase-change material, not the indium solder you would expect on a part like this. {{Source\|handle=wakeupmbrc1\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559272417338064979}}<br />{{Source\|handle=globalapathy\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559272646020038667}}<br />{{Source\|handle=gnasherrr\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561442200003416125}}<br />{{Source\|handle=xeax\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561497722685628417}} Old paste under the IHS is a large part of the thermal problem {{Source\|handle=xanthefin\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561336816873767023}}, which limits what a repaste on top can do {{Source\|handle=spectakkular\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559267967877910680}}.		* {{Status\|Reported}} Under the IHS is paste, apparently a phase-change material, not the indium solder you would expect on a part like this. {{Source\|handle=wakeupmbrc1\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559272417338064979}}<br />{{Source\|handle=globalapathy\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559272646020038667}}<br />{{Source\|handle=gnasherrr\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561442200003416125}}<br />{{Source\|handle=xeax\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561497722685628417}} Old paste under the IHS is a large part of the thermal problem {{Source\|handle=xanthefin\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561336816873767023}}, which limits what a repaste on top can do {{Source\|handle=spectakkular\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559267967877910680}}.
	* Cleaning tip: after alcohol and brushing, a strip of Kapton tape on the IHS pulled off the last layer of old paste residue. {{Source\|handle=_syn_thetic_\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562542992575959163}}		* Cleaning tip: after alcohol and brushing, a strip of Kapton tape on the IHS pulled off the last layer of old paste residue. {{Source\|handle=_syn_thetic_\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562542992575959163}}
	* {{Status\|Warning}} Delidding: there have been accidental delids {{Source\|handle=skirtchaser\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561497441117933568}}. The stock cooler cannot be used on the bare die without making up the IHS thickness or you cook the die, and it cannot be tightened further without damaging the VRM. {{Source\|handle=civiloid\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561522776815439892}} {{Status\|Theory}} @markshowa's idea: delid, solder a copper shim to the stock cooler and use PCM on the die, to run the HBM cooler and clock it higher; nobody knows the IHS thickness yet. {{Source\|handle=markshowa\|date=2026-10-19\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561758638236770393}}		* {{Status\|Warning}} Delidding: there have been accidental delids {{Source\|handle=skirtchaser\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561497441117933568}}. The stock cooler cannot be used on the bare die without making up the IHS thickness or you cook the die, and it cannot be tightened further without damaging the VRM. {{Source\|handle=civiloid\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561522776815439892}} {{Status\|Theory}} @markshowa's idea: delid, solder a copper shim to the stock cooler and use PCM on the die, to run the HBM cooler and clock it higher; nobody knows the IHS thickness yet. {{Source\|handle=markshowa\|date=2026-10-19\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561758638236770393}} {{Status\|Theory}} On 2026-10-22 he added that the A100 80 GB PCIe (300 W TDP) has direct-die cooling, so a delidded 170HX with a ring like the A100 80 GB's should cool better by air or water. Counterpoint from @gnasherrr: heat transfer is almost never the bottleneck on a GPU because heat density is low, about 300 W over 826 mm², and that figure assumes the HBM gives off no heat. Nobody reported a delid attempt. {{Source\|handle=markshowa\|date=2026-10-22\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562957602529222782}}<br />{{Source\|handle=gnasherrr\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563039790440521850}}<br />{{Source\|handle=gnasherrr\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563040540658901013}}

	== Loops ==		== Loops ==
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	* Radiators and pumps: a [https://www.titanrig.com/watercool-mo-ra-iv-400-radiator-4x200mm-and-fan-grill-bundle.html MO-RA IV 400] with 4x 200 mm fans is silent and runs on one D5; the MO-RA IV 600 needs two pumps; use Koolance quick disconnects for a detachable radiator. {{Source\|handle=zaknafar\|date=2026-10-10\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558498785535987713}} @wakeupmbrc1: a D5 is a poor pump for loops this size; use an Alphacool QX5, or two QX5 plus one or two D5. {{Source\|handle=wakeupmbrc1\|date=2026-10-10\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558501974066855948}} Also considered: the [https://www.titanrig.com/watercool-mo-ra-iv-600-radiator-9x200mm.html MO-RA IV 600] (9x 200 mm) and the [https://www.titanrig.com/alphacool-nexxxos-xt45-full-copper-1080mm-nova-radiator-9x120mm.html Alphacool NexXxoS XT45 1080 mm Nova] (9x 120 mm), all at TitanRig. {{Source\|handle=globalapathy\|date=2026-10-10\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558499117632589956}}		* Radiators and pumps: a [https://www.titanrig.com/watercool-mo-ra-iv-400-radiator-4x200mm-and-fan-grill-bundle.html MO-RA IV 400] with 4x 200 mm fans is silent and runs on one D5; the MO-RA IV 600 needs two pumps; use Koolance quick disconnects for a detachable radiator. {{Source\|handle=zaknafar\|date=2026-10-10\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558498785535987713}} @wakeupmbrc1: a D5 is a poor pump for loops this size; use an Alphacool QX5, or two QX5 plus one or two D5. {{Source\|handle=wakeupmbrc1\|date=2026-10-10\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558501974066855948}} Also considered: the [https://www.titanrig.com/watercool-mo-ra-iv-600-radiator-9x200mm.html MO-RA IV 600] (9x 200 mm) and the [https://www.titanrig.com/alphacool-nexxxos-xt45-full-copper-1080mm-nova-radiator-9x120mm.html Alphacool NexXxoS XT45 1080 mm Nova] (9x 120 mm), all at TitanRig. {{Source\|handle=globalapathy\|date=2026-10-10\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558499117632589956}}
	* Aluminium blocks exist too: an [https://www.ebay.com/itm/336788356245 aluminium A100 block on eBay] at about $450 ("robbery" to @_syn_thetic_); @_arcanum_ runs an all-aluminium loop, fittings and quick disconnects included, so the metals never mix. {{Source\|handle=globalapathy\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562136036375531620}}<br />{{Source\|handle=_arcanum_\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562136502102663250}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562136765249093643}}		* Aluminium blocks exist too: an [https://www.ebay.com/itm/336788356245 aluminium A100 block on eBay] at about $450 ("robbery" to @_syn_thetic_); @_arcanum_ runs an all-aluminium loop, fittings and quick disconnects included, so the metals never mix. {{Source\|handle=globalapathy\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562136036375531620}}<br />{{Source\|handle=_arcanum_\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562136502102663250}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562136765249093643}}
			* {{Status\|Contested}} '''Pumps for many blocks.''' The 2026-10-25 debate, in the order posted:
			** @_syn_thetic_ (about 20 years of water-cooling): a D5 (about 4 m of head, 500 L/h) is the wrong pump for multi-GPU loops; it lacks pressure and flow, and DDC and QX5 tops are not enough either. His pump does 2,700 L/h with 28 m maximum head and 5 to 100 % PWM; at 40 % it gives much more flow and pressure than a D5 at lower cost, and it is silent. {{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563791192926199861}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563791233116147833}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563791311394447512}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563794131120164965}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563794271042150514}}
			** @wakeupmbrc1: these blocks usually drop under 0.7 psi each, so two DDC-type QX5 pumps in series are more than enough for 4 GPUs; add one or two D5s in parallel for more. Other solutions are louder. {{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563791421977264262}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563791663607062541}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563792191141449859}}
			** @_syn_thetic_: more than 4 cards in a series plus parallel loop is not ideal, and with the cards fed in parallel from a distribution block a D5 is too weak. {{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563791694451703848}}
			* @_syn_thetic_'s loop layout: 1/2 x 3/4 inch main trunks with compression fittings, 3/8 x 5/8 inch lines to the blocks, distribution fed from both channel sides (top block out, return the same way), and oversized ball valves in the right places instead of quick disconnects. {{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563794323504373780}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563794360531689554}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563794386687365152}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563794505818181703}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563794967602798626}}
			* Parts and prices: @wakeupmbrc1 points to the vendor Iceman, which sells full CNC brass and copper D5 dual tops (about 2 kg) for 600 RMB retail, and DDC and QX5 tops too. {{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563791048503988265}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563791124970213387}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563791160793894923}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563791269166190613}} @munisix guessed blocks at about 100 USD per card; @_syn_thetic_ answered that block prices are now far higher (see the table above). {{Source\|handle=munisix\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563790834892017808}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563790950541692939}}
	* About $350 buys a good GPU loop. {{Source\|handle=wakeupmbrc1\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1560809069151785035}}		* About $350 buys a good GPU loop. {{Source\|handle=wakeupmbrc1\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1560809069151785035}}
	* Chillers: insulate the tubing so room air does not heat the coolant and the chiller runs less, and keep the loop just above the dew point so nothing condenses. {{Source\|handle=gnasherrr\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1564183851717234689}} Do not bring cold winter air in for air-cooled cards either: condensation. {{Source\|handle=alanoo\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562111068204044420}}		* Chillers: insulate the tubing so room air does not heat the coolant and the chiller runs less, and keep the loop just above the dew point so nothing condenses. {{Source\|handle=gnasherrr\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1564183851717234689}} Do not bring cold winter air in for air-cooled cards either: condensation. {{Source\|handle=alanoo\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562111068204044420}}

Virtual machines and passthrough

ImportBot — Fri, 30 Oct 2026 10:02:44 GMT

ESXi and Proxmox passthrough of CMP 170HX cards from @darkmaniac7 (Ivan) lab notes (ESXi 8, 4 cards), anoane/01-proxmox-dual-gpu-passthrough (posted by @logy0), PixelML/club-170hx, and Discord reports by benoit, SpiralGlide, ybryany, Froggo, ViPiC and others; gap-fill from #general 2026-10-25 (CMP plus V100), @zingy90210, @nathang6866

← Older revision		Revision as of 10:02, 30 October 2026
Line 55:		Line 55:
	* GalyGames: the unlock works on his Proxmox system (Debian based), and he reproduced Plean's 2-card Qwen3.8 Flash Next recipe on Proxmox. {{Source\|handle=galygious\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518695289278566450/1557452515354607679}}<br />{{Source\|handle=galygious\|date=2026-10-10\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1558336191634612340}}		* GalyGames: the unlock works on his Proxmox system (Debian based), and he reproduced Plean's 2-card Qwen3.8 Flash Next recipe on Proxmox. {{Source\|handle=galygious\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518695289278566450/1557452515354607679}}<br />{{Source\|handle=galygious\|date=2026-10-10\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1558336191634612340}}
	* ElectroHobo ran 170HX cards and V100s in one Dell R730 under Proxmox while first testing, in separate VMs rather than one model across both. {{Source\|handle=nathang6866\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563727993896177735}} See [[Dell PowerEdge R730]].		* ElectroHobo ran 170HX cards and V100s in one Dell R730 under Proxmox while first testing, in separate VMs rather than one model across both. {{Source\|handle=nathang6866\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563727993896177735}} See [[Dell PowerEdge R730]].
			** He answered PJ, who had asked owners of both cards to try combining them now that 170HX prices are up. He thinks the only way to run one model across both is two VMs plus software that shards the model across machines. He also has four 32 GB SXM2 V100s (no four-card board yet) and five 170HX in a Supermicro server, and plans separate models on each group. Mixed-GPU vLLM: see [[Operating systems and kernels#Mixed GPUs in one host]]. {{Source\|handle=zingy90210\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563725299273957438}}<br />{{Source\|handle=nathang6866\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563727993896177735}}

	== ESXi ==		== ESXi ==

Variant comparison

ImportBot — Fri, 30 Oct 2026 10:02:43 GMT

Import: 8 GB vs 10 GB comparison table, @djpandaman, @wakeupmbrc1, @markshowa, @c133, @lia_oc, @rh3dai, @programmerboi, @cuddylac997, @lxtend, @matstatman, @darkmaniac7, @zorg33

VBIOS and firmware

ImportBot — Fri, 30 Oct 2026 10:02:42 GMT

CMP 170HX VBIOS facts, the vix no-flash loaders, the bogus "unlocked VBIOS" repos, SPI flasher voltage, GSP-off and vGPU; flashing risks as warnings. Discord Oct 2026 and the repos.; sources: @petrikrohn_26497, @rrickk420, @ghostinthedatacenter_87281, @lxtend, @scallion_9883, @xanthefin, @bigptoughneigh, @c133, @globalapathy, @supasnipa360, @wakeupmbrc1, @youngju10000 (+6 more); GitHub Consensus-Protocol/cmp170hx, Panchovix/nvidia-linux-vbios-vix-loader, Panchovix/nvidia-vbio

← Older revision		Revision as of 10:02, 30 October 2026
Line 46:		Line 46:
	lxwx tested the Linux loader on a 170HX 10 GB and reports it works and let him tweak TDP to 300 W on 610/615 drivers,		lxwx tested the Linux loader on a 170HX 10 GB and reports it works and let him tweak TDP to 300 W on 610/615 drivers,
	together with the gen3 unlock. {{Source\|lxtend\|2026-10-20\|https://discord.com/channels/1518634379604136178/1518692084729511967/1562103260490240172}}		together with the gen3 unlock. {{Source\|lxtend\|2026-10-20\|https://discord.com/channels/1518634379604136178/1518692084729511967/1562103260490240172}}
	But the override is applied in GSP, which is '''too late in boot''' to ~~change~~ anything still locked, so for the unlock		But the override is applied in GSP, which is '''too late in boot''' to touch anything still locked on the 8 GB card, so
	it adds nothing new; ~~it should reach~~ clocks and ~~power only~~. {{Source\|scallion_9883\|2026-10-19\|https://discord.com/channels/1518634379604136178/1518691940646781070/~~1561743172554588171~~}}		for the unlock it adds nothing new; clocks and similar settings should be reachable through it, little else.
			{{Source\|handle=scallion_9883\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561103147215224983}}<br />{{Source\|handle=scallion_9883\|date=2026-10-19\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561816073844555929}}<br />{{Source\|handle=scallion_9883\|date=2026-10-19\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561816657788276867}}<br />{{Source\|handle=scallion_9883\|date=2026-10-19\|link=https://discord.com/channels/1518634379604136178/1518691940646781070/1561841116603621527}}
	The 300 W power-limit bytes sit outside the VBIOS signature section, implying the power limit is editable without the		The 300 W power-limit bytes sit outside the VBIOS signature section, implying the power limit is editable without the
	signing key. {{Source\|xanthefin\|2026-10-18\|https://discord.com/channels/1518634379604136178/1518692084729511967/1561368219657179187}}		signing key. {{Source\|xanthefin\|2026-10-18\|https://discord.com/channels/1518634379604136178/1518692084729511967/1561368219657179187}}
Line 64:		Line 65:
	involves no VBIOS change. When members compared the file to the original in August there was no difference.		involves no VBIOS change. When members compared the file to the original in August there was no difference.
	'''Do not flash it.''' {{Source\|c133\|2026-10-18\|https://discord.com/channels/1518634379604136178/1518692084729511967/1561390399283535955}}		'''Do not flash it.''' {{Source\|c133\|2026-10-18\|https://discord.com/channels/1518634379604136178/1518692084729511967/1561390399283535955}}
	{{Source\|globalapathy\|2026-10-18\|https://discord.com/channels/1518634379604136178/1518692084729511967/1561391210906517565}}		{{Source\|handle=xanthefin\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561391210906517565}}<br />{{Source\|handle=globalapathy\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561391800818733068}}<br />{{Source\|handle=c133\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561392232370806855}}

			{{Status\|Contested}} An "unlocked VBIOS" for the 10 GB card is also said to exist, "a harder find it seems due to legal
			concerns"; this was hearsay, with no file or result shown. {{Source\|handle=supasnipa360\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561388811123167233}}
			The answer in the same thread applies to both variants: the unlock makes no VBIOS change, and someone able to write a
			VBIOS would not have stopped at 64 GB. {{Source\|handle=xanthefin\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561391210906517565}}<br />{{Source\|handle=globalapathy\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561391800818733068}}

	== SPI flashing (if you must) ==		== SPI flashing (if you must) ==
Line 83:		Line 89:
	* '''GSP disabled:''' applying the unlock, building a dual-stack driver that persists the unlock kernels, then loading		* '''GSP disabled:''' applying the unlock, building a dual-stack driver that persists the unlock kernels, then loading
	the proprietary driver with <code>NVreg_EnableGpuFirmware=0</code> let certain register changes survive the reload		the proprietary driver with <code>NVreg_EnableGpuFirmware=0</code> let certain register changes survive the reload
	with no GSP panics (works well on the 90HX). ~~Most people think~~ it ~~adds little~~ since everything ~~software-unlockable is~~		with no GSP panics. GreenDam replied that it works well on the 90HX. matstatman doubts it helps, since everything
	~~already~~ found. {{Source\|zarknoth\|2026-10-27\|https://discord.com/channels/1518634379604136178/1518695328008638516/1564547690019160145}}		software can unlock has been found and the fuses cut off the rest. {{Source\|zarknoth\|2026-10-27\|https://discord.com/channels/1518634379604136178/1518695328008638516/1564547690019160145}}<br />
			{{Source\|handle=matstatman\|date=2026-10-27\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1564575816010965024}}<br />
			{{Source\|handle=green_dam\|date=2026-10-28\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1564799215874474065}}
	* '''vGPU:''' close to working in cmpunlocker on the <code>vGPU-and-others</code> branch (three patches:		* '''vGPU:''' close to working in cmpunlocker on the <code>vGPU-and-others</code> branch (three patches:
	vgpu-kvm-build, vgpu-ga100-host, vgpu-umd-version). {{Source\|_j3ns\|2026-10-26\|https://discord.com/channels/1518634379604136178/1518692084729511967/1564421429703737355}}		vgpu-kvm-build, vgpu-ga100-host, vgpu-umd-version). {{Source\|_j3ns\|2026-10-26\|https://discord.com/channels/1518634379604136178/1518692084729511967/1564421429703737355}}

Unlocks

ImportBot — Fri, 30 Oct 2026 10:02:41 GMT

Overview and map of every CMP 170HX unlock, with a per-variant table; sources are the cmpunlocker Discord (Oct 2026) and the linked repos. Keeps the existing Form input and Cargo query below the overview. Gap-fill from #general 2026-10-22 to 10-26 (no 8 GB RIR path), @froggao, @scallion_9883, @hezz1891, @lia_oc.

@@ Line 12: / Line 12: @@
 {{Source|wakeupmbrc1|2026-10-07|https://discord.com/channels/1518634379604136178/1518692084729511967/1557272148563857421}}
 {{Source|_orrorin|2026-10-19|https://discord.com/channels/1518634379604136178/1518695328008638516/1561831202766200914}}
 == What each unlock gives, by card ==

Undervolting and power limits

ImportBot — Fri, 30 Oct 2026 10:02:40 GMT

Undervolting (V/F offset), power caps and HBM clock on the CMP 170HX, with measured watts against tok/s and temperature; from the cmpunlocker Discord (including the Undervolting GUIDE thread), cachenetics/170tune and vektorprime/170tune (MIT), PixelML/club-170hx (Apache-2.0) and Ivan's lab notes; gap-fill from #general 2026-10-23 to 10-25: @wakeupmbrc1, @munisix, @siriusrhi, @djpandaman, @xeax

← Older revision		Revision as of 10:02, 30 October 2026
Line 89:		Line 89:
	\|-		\|-
	\| 300 W \|\| four cards on one 1,600 W PSU \|\| {{Source\|handle=okrasit.\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556772848041988238}}		\| 300 W \|\| four cards on one 1,600 W PSU \|\| {{Source\|handle=okrasit.\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556772848041988238}}
			\|-
			\| 150 to 180 W, rarely above 200 W \|\| seven cards on a mining rack; an apartment breaker sets the ceiling, and above that the returns are minimal unless the cards are loaded all the time \|\| {{Source\|handle=munisix\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563786484912365689}}
			\|-
			\| 200 W \|\| four cards for inference are "perfectly fine if properly undervolted and tuned" \|\| {{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563783191725080629}}
	\|}		\|}
			* @wakeupmbrc1 holds that GA100 is much more energy efficient for inference than GB202 (the RTX PRO 6000) in memory bandwidth per watt. {{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563782960648429669}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563783041141313627}} @siriusrhi plans to start his cards at 200 W and go to 250 W once his wiring is fixed. {{Source\|handle=siriusrhi\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563785800515063959}}

	== Measured watts against throughput ==		== Measured watts against throughput ==
Line 156:		Line 161:
	* {{Status\|Reported}} After the SM unlock the 10 GB card is power bound. @djpandaman's card at 122 SMs hit the power cap and lost memory bandwidth even with the clock locked at 1,095 MHz; there was no difference between 108 and 122 SMs, and it capped even at 94 SMs. {{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559236914391949484}}<br />{{Source\|handle=emogop\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559239854842191903}}		* {{Status\|Reported}} After the SM unlock the 10 GB card is power bound. @djpandaman's card at 122 SMs hit the power cap and lost memory bandwidth even with the clock locked at 1,095 MHz; there was no difference between 108 and 122 SMs, and it capped even at 94 SMs. {{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559236914391949484}}<br />{{Source\|handle=emogop\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559239854842191903}}
	* The 10 GB VBIOS has no SM offset range (see above), so the usual undervolt does not apply. {{Source\|repo=https://github.com/vektorprime/170tune}}		* The 10 GB VBIOS has no SM offset range (see above), so the usual undervolt does not apply. {{Source\|repo=https://github.com/vektorprime/170tune}}
			* {{Status\|Contested}} '''Can a fully SM-unlocked 10 GB card be undervolted?''' The question came up after @djpandaman's 122-SM card spiked to about 400 W at a 250 W limit (see [[Power supplies and cabling#PSU sizing]]). In the order posted:
			** @djpandaman could not set the GPU clock by hand on that card the way he sets the memory clock, though he did not try hard, and presumes the SM clock is dynamic. {{Source\|handle=djpandaman\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563223577501769749}}
			** @wakeupmbrc1: set a GPU curve offset, so the card holds the same frequency at a lower voltage. {{Source\|handle=wakeupmbrc1\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563225977906270380}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563226038723547187}}
			** The 170tune fork reads the offset range of the 10 GB VBIOS 92.00.66.00.02 as [0..+0] (the bullet above). {{Source\|repo=https://github.com/vektorprime/170tune}}
			* Safe power limits for fully SM-unlocked cards are not known yet. {{Source\|handle=xeax\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563220557363814480}}
	* {{Status\|Contested}} What to do about it:		* {{Status\|Contested}} What to do about it:
	** @wakeupmbrc1: undervolting is necessary, and a shunt mod, better with the four unpopulated power phases soldered in (DrMOS, chokes, caps). {{Source\|handle=wakeupmbrc1\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559237006444204075}} Untested in the posts. {{Status\|Theory}}		** @wakeupmbrc1: undervolting is necessary, and a shunt mod, better with the four unpopulated power phases soldered in (DrMOS, chokes, caps). {{Source\|handle=wakeupmbrc1\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559237006444204075}} Untested in the posts. {{Status\|Theory}}

Tools

ImportBot — Fri, 30 Oct 2026 10:02:39 GMT

Import: tools overview, @mountains1605, @globalapathy, @xeax, @matstatman, @c133, @wakeupmbrc1, @zagitta, @impactic, @djpandaman, @sojun80, @arabus_74064, @reala7096, @_arcanum_, @rh3dai; repos PixelML/club-170hx, SeraphimSerapis/tool-eval-bench, dev-boz/cmp170hx-testsuite, lixiangwuxian/170hx-rir-tool, sasha0552/nvidia-pstated, zzc0721/torch-performance-test-data; gap-fill from #general 2026-10-23 to 10-25: @phoenixone7, @zagitta, @mrwojaketh, @danske1, @petrikrohn_26497, @d

← Older revision		Revision as of 10:02, 30 October 2026
Line 85:		Line 85:
	* {{Status\|Reported}} '''vLLM run-to-run variance.''' Re-running the same quantization comparison gave results about 3 percent apart; @vektor_prime traced it to upstream vLLM and fixed it with a batch-invariance change in his recipe repository. {{Source\|handle=vektor_prime\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518695289278566450/1557467960455467170}}<br />{{Source\|handle=vektor_prime\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518695289278566450/1557498798530498601}}		* {{Status\|Reported}} '''vLLM run-to-run variance.''' Re-running the same quantization comparison gave results about 3 percent apart; @vektor_prime traced it to upstream vLLM and fixed it with a batch-invariance change in his recipe repository. {{Source\|handle=vektor_prime\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518695289278566450/1557467960455467170}}<br />{{Source\|handle=vektor_prime\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518695289278566450/1557498798530498601}}
	* {{Status\|Contested}} '''LMCache''' for spilling KV cache to CPU RAM: with it vLLM processed one request at a time instead of eight, and @c133 found it also wanted VRAM. {{Source\|handle=nikhilr1696\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1556742092150284339}}<br />{{Source\|handle=c133\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1556741812394270760}}		* {{Status\|Contested}} '''LMCache''' for spilling KV cache to CPU RAM: with it vLLM processed one request at a time instead of eight, and @c133 found it also wanted VRAM. {{Source\|handle=nikhilr1696\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1556742092150284339}}<br />{{Source\|handle=c133\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1556741812394270760}}
			* {{Status\|Reported}} '''NeuralFree''' ([https://github.com/EonMux/NeuralFree EonMux/NeuralFree]): a work-in-progress inference framework by @phoenixone7. GGUF support is in; safetensors support and testing are still to come. He split it out of an older trading-bot project and plans to keep supporting it because of prefix-caching problems he hit in vLLM. No CMP numbers posted. {{Source\|handle=phoenixone7\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563213261850157077\|repo=https://github.com/EonMux/NeuralFree}}<br />{{Source\|handle=phoenixone7\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563213796913188956}}
	* {{Status\|Theory}} '''EAGLE-4''' speculative decoding was flagged as faster than MTP; nobody tried it on a 170HX. {{Source\|handle=cibernox\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1562247115562942555}}		* {{Status\|Theory}} '''EAGLE-4''' speculative decoding was flagged as faster than MTP; nobody tried it on a 170HX. {{Source\|handle=cibernox\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1562247115562942555}}
	* {{Status\|Theory}} '''flare-local-inference''' (NVIDIA) is built for Blackwell; a port to these cards would need a purpose-written engine. {{Source\|handle=mountains1605\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1562492007262322789}}<br />{{Source\|handle=dufrelic\|date=2026-10-22\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1562824922286526505}}		* {{Status\|Theory}} '''flare-local-inference''' (NVIDIA) is built for Blackwell; a port to these cards would need a purpose-written engine. {{Source\|handle=mountains1605\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1562492007262322789}}<br />{{Source\|handle=dufrelic\|date=2026-10-22\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1562824922286526505}}
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	* Iron: a Pinecil or any 60 W or stronger iron with SMD tips; the Sequre S99 (USB-C, C245 tips, 100 W). {{Source\|handle=civiloid\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558803228362145833}}<br />{{Source\|handle=globalapathy\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558832357514154055}}		* Iron: a Pinecil or any 60 W or stronger iron with SMD tips; the Sequre S99 (USB-C, C245 tips, 100 W). {{Source\|handle=civiloid\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558803228362145833}}<br />{{Source\|handle=globalapathy\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558832357514154055}}
	* Microsoldering tweezers are essential; the capacitors are almost impossible to handle otherwise. Clean with isopropyl alcohol, foam swabs, a brush and wipes. {{Source\|handle=_arcanum_\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558857956961820794}}<br />{{Source\|handle=_arcanum_\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558858884343668859}}		* Microsoldering tweezers are essential; the capacitors are almost impossible to handle otherwise. Clean with isopropyl alcohol, foam swabs, a brush and wipes. {{Source\|handle=_arcanum_\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558857956961820794}}<br />{{Source\|handle=_arcanum_\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558858884343668859}}
	* Microscope: @civiloid would rather have a QianLi Gorilla 6558 or Mechanic 6560T with a camera than work off a screen alone. {{Source\|handle=civiloid\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558803596852596837}} A used Vision Engineering TS-4 is another option; skip the TS-3. {{Source\|handle=cmdrwaka324\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559782730688893020}}		* Microscope: @civiloid would rather have a QianLi Gorilla 6558 or Mechanic Robot 6560T with a camera than work off a screen alone. {{Source\|handle=civiloid\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558803596852596837}} For soldering he calls a new Chinese binocular microscope with a camera module the most cost-effective choice: small, good enough optics, and the camera plugs into any screen. QianLi and Mechanic are consumer brands that buy white-label units, so the actual manufacturer is cheaper. {{Source\|handle=civiloid\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559808745176043613}}<br />{{Source\|handle=civiloid\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559808927581872161}}<br />{{Source\|handle=civiloid\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559809944977408102}} @_arcanum_ paid about USD 300 on Taobao for the QianLi 6558 UV-light version; the IR module is about 140 more. {{Source\|handle=_arcanum_\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559983772076609640}}<br />{{Source\|handle=_arcanum_\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559985698352795670}}<br />{{Source\|handle=_arcanum_\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559985805802340454}} A used Vision Engineering TS-4 is another option; skip the TS-3, which is louder (fans on the supply and the halogen housing) and older in optics and electronics. {{Source\|handle=cmdrwaka324\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559782730688893020}}<br />{{Source\|handle=cmdrwaka324\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559798125542248489}} On the TS series, video output needs the camera optics (the CS adapter) fitted when bought; scopes in this class run USD 2,000 to 3,000, and eyepiece-only scopes cost about 5x less. Many cheap camera heads send one eye's light fully to the camera, so you lose binocular view while recording. {{Source\|handle=endsjeremy\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559786404223914037}}<br />{{Source\|handle=cmdrwaka324\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559788016095076363}}<br />{{Source\|handle=endsjeremy\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559804501127462943}}<br />{{Source\|handle=endsjeremy\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559805792067125259}}<br />{{Source\|handle=endsjeremy\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559984711525343233}}
	* A solder stencil for the mod is in the channel pins, but making one needs a laser cutter. {{Source\|handle=globalapathy\|date=2026-10-27\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1564479737160802307}}<br />{{Source\|handle=globalapathy\|date=2026-10-27\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1564479895952695377}}		* A solder stencil for the mod is in the channel pins, but making one needs a laser cutter. {{Source\|handle=globalapathy\|date=2026-10-27\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1564479737160802307}}<br />{{Source\|handle=globalapathy\|date=2026-10-27\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1564479895952695377}}
	* A video of the mod done quickly by a Canadian GPU repair YouTuber: https://www.youtube.com/watch?v=HO2T4TgNzlQ {{Source\|handle=_arcanum_\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558856094116483142}}		* A video of the mod done quickly by a Canadian GPU repair YouTuber: https://www.youtube.com/watch?v=HO2T4TgNzlQ {{Source\|handle=_arcanum_\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558856094116483142}}
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	== Related work on other NVIDIA cards ==		== Related work on other NVIDIA cards ==
	* {{Status\|Reported}} '''Zagitta/gpu-unlock''': a Linux kernel module that removes the half-rate tensor-math limit on RTX 3090 class cards with the register approach the CMP unlocks use, without driver patching. It must load before the NVIDIA driver; it only matches RTX 3090 IDs by default. Gain: a few percent prefill when the engine uses BF16 to FP32 FMA; no core or SM unlock. {{Source\|handle=zagitta\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1561189774834802709}}<br />{{Source\|handle=zagitta\|date=2026-10-19\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1561876551505551411}}<br />{{Source\|handle=zagitta\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562214717316137005}}<br />{{Source\|handle=zagitta\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1563321762756694107}} @sojun80 used the approach on a 3060 Ti, 3070, 3070 mobile, 3080 and 3080 Ti, and is building a generic unlock tool from cmpunlocker for the 30 and 40 series. {{Source\|handle=sojun80\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562322577676967957}}<br />{{Source\|handle=sojun80\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562322921383264289}} Details belong on [[Unlocks]].		* {{Status\|Reported}} '''Zagitta/gpu-unlock''': a Linux kernel module that removes the half-rate tensor-math limit on RTX 3090 class cards with the register approach the CMP unlocks use, without driver patching. It must load before the NVIDIA driver; it only matches RTX 3090 IDs by default. Gain: a few percent prefill when the engine uses BF16 to FP32 FMA; no core or SM unlock. {{Source\|handle=zagitta\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1561189774834802709}}<br />{{Source\|handle=zagitta\|date=2026-10-19\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1561876551505551411}}<br />{{Source\|handle=zagitta\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562214717316137005}}<br />{{Source\|handle=zagitta\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1563321762756694107}} @sojun80 used the approach on a 3060 Ti, 3070, 3070 mobile, 3080 and 3080 Ti, and is building a generic unlock tool from cmpunlocker for the 30 and 40 series. {{Source\|handle=sojun80\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562322577676967957}}<br />{{Source\|handle=sojun80\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562322921383264289}} Details belong on [[Unlocks]].
			** @grapepepper patched his RTX 3090 Ti from the repository; after he shared his results others unlocked various RTX 30-series cards, and he has seen a report of an RTX 4070 Ti SUPER. {{Source\|handle=grapepepper\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562183666371924070}}
			** '''eGPU.''' Zagitta: someone got it working on an eGPU (see the repo issues). {{Status\|Theory}} @da6b, whose 3090 sits behind a Thunderbolt 3 bridge, expects to need the Thunderbolt drivers in the initramfs and Thunderbolt security disabled so the tunnel is up before the module loads, possibly with some timing involved; an eGPU on M.2 is a direct PCIe link and simpler. {{Source\|handle=zagitta\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1563321076027752459}}<br />{{Source\|handle=da6b\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1563320911858376785}}<br />{{Source\|handle=da6b\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1563321227320492143}}
			** {{Status\|Theory}} @sojun80 thinks the tensor limit applies to the 20 to 40 series, "i think all of them"; he has no 20-series card left to test. {{Source\|handle=sojun80\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562275001879629885}}<br />{{Source\|handle=sojun80\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562322138516684843}}
			** Zagitta on its origin: it builds on the CMP unlock work (the same basis as cmpunlocker, and the CMP 90HX and 50HX unlocks), and nothing in it is new; his only change is doing it without a driver patch, as a standalone early-boot module, an idea he took from the UEFI module the 90HX and 50HX Windows unlocks use. He has no Windows version planned. On 2026-10-24, asked whether it covers only GA102, he said GA104 and GA106 as well; other GPUs in the same host (a 50-series card, for example) are left alone. {{Source\|handle=zagitta\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563146783062884393}}<br />{{Source\|handle=zagitta\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563529939586912410}}<br />{{Source\|handle=mrwojaketh\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563529790848372796\|repo=https://github.com/Zagitta/gpu-unlock}}<br />{{Source\|handle=zagitta\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563543666553913345}}<br />{{Source\|handle=zagitta\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563559641152098425}}<br />{{Source\|handle=zagitta\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563585750836969533}}<br />{{Source\|handle=zagitta\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563875998443765832}}
			** {{Status\|Reported}} @danske1's before and after numbers on an EVGA RTX 3090 FTW3, 8192 x 8192 x 8192 GEMM, median of 20 iterations x 5 samples: FP16 in with FP32 accumulate 81.95 to 141.07 TFLOPS (+72 %), BF16 / FP32 81.35 to 145.59 (+79 %), TF32 40.46 to 78.76 (+95 %); FP16 with FP16 accumulate (about 148) and plain FP32 (about 30) unchanged. {{Source\|handle=danske1\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563293585762295871}}<br />{{Source\|handle=danske1\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563293742557962313}}
			* {{Status\|Reported}} '''JustAResearcher/gpu-unlock-ada''' ([https://github.com/JustAResearcher/gpu-unlock-ada GitHub]) takes the tensor unlock to RTX 40-series (Ada) cards. @petrikrohn_26497 reported an RTX 4090 unlocked and posted the repo. Its README credits Zagitta/gpu-unlock for the Linux module and packaging, TOTORONG/AD103_win_unlocker for the AD102 support and WildFlash1st/cmp90hx-unlock for the GA102 path; the module and packaging are GPL-2.0-only and the NVIDIA firmware stays under NVIDIA's own terms. @djpandaman, earlier the same day: the tensor unlock can be done on AD103 too, and he was trying AD102. @sevendaysworth unlocked an RTX 4080 FE by pointing an AI agent at another member's repo (the repo is not named in his post). Not a CMP 170HX tool. A day earlier @zagitta had posted TOTORONG/AD103_win_unlocker on Hugging Face ("Seems someone got ada unlock working maybe") and @dottoreargus replied "Can confirm, it does work". {{Source\|handle=zagitta\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1563248053916536933}}<br />{{Source\|handle=dottoreargus\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1563314008717791445}}<br />{{Source\|handle=petrikrohn_26497\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563577439504830544}}<br />{{Source\|handle=petrikrohn_26497\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563578905913331836\|repo=https://github.com/JustAResearcher/gpu-unlock-ada}}<br />{{Source\|handle=djpandaman\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563559770307436645}}<br />{{Source\|handle=sevendaysworth\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563612387800522785}}
			* Open question: has anyone tried the unlock on a GA104 laptop GPU? @da6b asked on 2026-10-23; no answer in the thread. {{Source\|handle=da6b\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563174949785698396}}
	* {{Status\|Theory}} @djpandaman asked AD102 owners (4090, RTX 5000 Ada, 6000 Ada) to run a read-only fuse dump script; @zagitta posted fuse and floorsweep register values from two RTX 3090s for reference. {{Source\|handle=zagitta\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1564323744510648351}}<br />{{Source\|handle=djpandaman\|date=2026-10-27\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1564512498743378011}}<br />{{Source\|handle=djpandaman\|date=2026-10-27\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1564512653253148692}}		* {{Status\|Theory}} @djpandaman asked AD102 owners (4090, RTX 5000 Ada, 6000 Ada) to run a read-only fuse dump script; @zagitta posted fuse and floorsweep register values from two RTX 3090s for reference. {{Source\|handle=zagitta\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1564323744510648351}}<br />{{Source\|handle=djpandaman\|date=2026-10-27\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1564512498743378011}}<br />{{Source\|handle=djpandaman\|date=2026-10-27\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1564512653253148692}}
	* Reverse-engineering links people shared: a laser fault injection rig build (fraktalcyber/lfi-rig) and an agent tool whose list lacks NVIDIA Falcon support; an agent with Ghidra and radare2 can disassemble most things. {{Source\|handle=mountains1605\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1558202438660657193}}<br />{{Source\|handle=analyticeth\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1558190561977045017}}<br />{{Source\|handle=dottoreargus\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1559852208168771646}}		* Reverse-engineering links people shared: a laser fault injection rig build (fraktalcyber/lfi-rig) and an agent tool whose list lacks NVIDIA Falcon support; an agent with Ghidra and radare2 can disassemble most things. {{Source\|handle=mountains1605\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1558202438660657193}}<br />{{Source\|handle=analyticeth\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1558190561977045017}}<br />{{Source\|handle=dottoreargus\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1559852208168771646}}

Thermal limits

ImportBot — Fri, 30 Oct 2026 10:02:38 GMT

Core and HBM temperature thresholds, throttling and drop-off behaviour, what temperatures people run at, how to read the sensors; from the cmpunlocker Discord (2026-10-04 to 10-27), cachenetics/170tune, PixelML/club-170hx, amoghmunikote/170th-Street, matstatman/hbmmon and Ivan's lab notes; gap-fill from #general 2026-10-23 (400 W spike at a 250 W limit), @djpandaman, @xeax

← Older revision		Revision as of 10:02, 30 October 2026
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	== Throttling behaviour ==		== Throttling behaviour ==
	* When the cap or the temperature limit bites, the core clock drops and with it memory bandwidth and tokens per second. On a 10 GB card with all SMs unlocked, the power cap tanked memory bandwidth even with the clock locked. {{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559236914391949484}} See [[Undervolting and power limits]].		* When the cap or the temperature limit bites, the core clock drops and with it memory bandwidth and tokens per second. On a 10 GB card with all SMs unlocked, the power cap tanked memory bandwidth even with the clock locked. {{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559236914391949484}} See [[Undervolting and power limits]].
			* {{Status\|Warning}} '''A 250 W cap did not bound a fully SM-unlocked 10 GB card.''' @djpandaman's card at 122 SMs briefly reported about 400 W of board power during benchmarks with the limit at 250 W (he was unsure whether the reading was measured or calculated), and all of it ends up in the same heatsink and VRM. @xeax worries the VRM MOSFETs get overloaded and doubts he could cool that load. On such a card, watch core and HBM temperatures under real load instead of trusting the cap, and undervolt (see [[Undervolting and power limits#10 GB cards]] and [[Power supplies and cabling#PSU sizing]]). {{Source\|handle=xeax\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563222111592521881}}<br />{{Source\|handle=djpandaman\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563222404627431497}}
	* Prefill is where cards run hottest: @c133's cards spike over their cap during long prefills {{Source\|handle=c133\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1558163141723037798}}; PixelML's worst-airflow card reached 80 to 85 C core on long-context prefill at 180 W, which is why they lowered the cap {{Source\|repo=https://github.com/PixelML/club-170hx}}.		* Prefill is where cards run hottest: @c133's cards spike over their cap during long prefills {{Source\|handle=c133\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1558163141723037798}}; PixelML's worst-airflow card reached 80 to 85 C core on long-context prefill at 180 W, which is why they lowered the cap {{Source\|repo=https://github.com/PixelML/club-170hx}}.
	* Check whether the card is in hardware power-brake slowdown: <code><nowiki>nvidia-smi -q \| grep -A1 'HW Power Brake Slowdown'</nowiki></code>. {{Source\|repo=https://github.com/PixelML/club-170hx}}		* Check whether the card is in hardware power-brake slowdown: <code><nowiki>nvidia-smi -q \| grep -A1 'HW Power Brake Slowdown'</nowiki></code>. {{Source\|repo=https://github.com/PixelML/club-170hx}}
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	* <code><nowiki>nvidia-smi -q -d TEMPERATURE</nowiki></code> {{Source\|handle=xeax\|date=2026-10-15\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1560253301985906692}}, or for logging <code><nowiki>nvidia-smi --query-gpu=index,temperature.gpu,temperature.memory,power.draw --format=csv</nowiki></code> {{Source\|repo=https://github.com/PixelML/club-170hx}}. Watch <code><nowiki>temperature.memory</nowiki></code>: HBM is usually the warmest sensor under load. {{Source\|repo=https://github.com/cachenetics/170tune}}		* <code><nowiki>nvidia-smi -q -d TEMPERATURE</nowiki></code> {{Source\|handle=xeax\|date=2026-10-15\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1560253301985906692}}, or for logging <code><nowiki>nvidia-smi --query-gpu=index,temperature.gpu,temperature.memory,power.draw --format=csv</nowiki></code> {{Source\|repo=https://github.com/PixelML/club-170hx}}. Watch <code><nowiki>temperature.memory</nowiki></code>: HBM is usually the warmest sensor under load. {{Source\|repo=https://github.com/cachenetics/170tune}}
	* The card has about 10 temperature sensors, including one per HBM stack. {{Source\|handle=matstatman\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556770474695069718}} [https://github.com/matstatman/hbmmon matstatman/hbmmon] shows per-stack temperature, but it writes to the HBM debug interface by default and needs a custom driver; use its read-only mode on a stock driver. {{Source\|handle=matstatman\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556758870565593288\|repo=https://github.com/matstatman/hbmmon\|note=no license file}}		* The card has about 10 temperature sensors, including one per HBM stack. {{Source\|handle=matstatman\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556770474695069718}} [https://github.com/matstatman/hbmmon matstatman/hbmmon] shows per-stack temperature, but it writes to the HBM debug interface by default and needs a custom driver; use its read-only mode on a stock driver. {{Source\|handle=matstatman\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556758870565593288\|repo=https://github.com/matstatman/hbmmon\|note=no license file}}
	* The 10 GB card's memory runs a few degrees warmer than the 8 GB card's (two more half stacks active): 41 C against 37 C at ~~the same~~ 33 W idle after a repaste; before the repaste the gap was 13 C, which pointed at the thermal interface. {{Source\|handle=ghostinthedatacenter_87281\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559597067352023152}}<br />{{Source\|handle=colo2442\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559599442166812784}}<br />{{Source\|handle=djpandaman\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559649510827757569}}		* The 10 GB card's memory runs a few degrees warmer than the 8 GB card's (two more half stacks active): 41 C against 37 C, both at about 33 W idle, after a repaste; before the repaste the gap was 13 C, which pointed at the thermal interface. The owner used PTM on the 8 GB card and then ran out; what went on the 10 GB card is not stated. {{Source\|handle=ghostinthedatacenter_87281\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559597067352023152}}<br />{{Source\|handle=colo2442\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559599442166812784}}<br />{{Source\|handle=djpandaman\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559649510827757569}}<br />{{Source\|handle=ghostinthedatacenter_87281\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559651382816936108}}<br />{{Source\|handle=ghostinthedatacenter_87281\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559653025700909117}}
	* A server BMC cannot read the temperature of a card on a generic passive riser, so it will not ramp the fans for it. {{Source\|handle=fafinet\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1562300430439157850}}		* A server BMC cannot read the temperature of a card on a generic passive riser, so it will not ramp the fans for it. {{Source\|handle=fafinet\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1562300430439157850}}

Risers and bifurcation

ImportBot — Fri, 30 Oct 2026 10:02:35 GMT

Link width, riser cables, M.2/OcuLink/SlimSAS adapters, PCIe switches (PEX88096, PEX 8747, PEX9797) and bifurcation for CMP 170HX hosts, from Discord (Mountains, cibernox, segmond, fafinet, endsjeremy, domrockt2, markshowa, OB88594, replacedriver47, peter643, Miséricorde and others), PixelML/club-170hx and @darkmaniac7 (Ivan) lab notes; gap-fill from #general 2026-10-24 to 10-25 (P2P failing behind a PLX 88096), @replacedriver47, @djpandaman, @nathang6866

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	* '''PEX88096''' (Gen4): one board feeds 5 cards at x16, or 10 at x8. Typical boards take a PCIe x16 host link and use 2x SFF-8654 8i per board. A 6-port version cuts the cost about in half (endsjeremy). {{Source\|handle=gnasherrr\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561000198086336665}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561404369382023203}}<br />{{Source\|handle=endsjeremy\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1562309916864282676}}<br />{{Source\|handle=endsjeremy\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1562309959482478667}}		* '''PEX88096''' (Gen4): one board feeds 5 cards at x16, or 10 at x8. Typical boards take a PCIe x16 host link and use 2x SFF-8654 8i per board. A 6-port version cuts the cost about in half (endsjeremy). {{Source\|handle=gnasherrr\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561000198086336665}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561404369382023203}}<br />{{Source\|handle=endsjeremy\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1562309916864282676}}<br />{{Source\|handle=endsjeremy\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1562309959482478667}}
	* '''PEX88144 / PEX89144''': one board for 8 cards from one root port, but expensive (PEX89144 over 3000 USD) and rare. {{Source\|handle=wakeupmbrc1\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561000283566514279}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561402969126080597}}		* '''PEX88144 / PEX89144''': one board for 8 cards from one root port, but expensive (PEX89144 over 3000 USD) and rare. {{Source\|handle=wakeupmbrc1\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561000283566514279}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561402969126080597}}
	* '''Cascading:''' with two PEX88096 boards in two host slots there are 16 lanes left on each switch, so cascade them so DMA reaches all 8 cards (endsjeremy). {{Source\|handle=endsjeremy\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561403392465707150}}		* '''Gen5 lane counts:''' among Broadcom's Gen5 switches only the PEX89144 and PEX89032 have lane counts divisible by 16 (gnasherrr). DaLZy's guess at the reason: customers wanted to split one x16 into four x16 slots and still attach a NIC or USB controller. {{Source\|handle=gnasherrr\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561408742438867125}}<br />{{Source\|handle=dalzyyy\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561409384968491009}}
			* '''Cascading:''' with two PEX88096 boards in two host slots there are 16 lanes left on each switch, so cascade them so DMA reaches all 8 cards (endsjeremy). The alternative he named for 8 cards is a single 10-port switch instead of two. {{Source\|handle=endsjeremy\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561403167936352439}}<br />{{Source\|handle=endsjeremy\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561403392465707150}}
	* '''3x Gen4 x16 switch cards''' exist and cost less than the 5x x16 versions. {{Source\|handle=gpmickey\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1557481786802573433}}		* '''3x Gen4 x16 switch cards''' exist and cost less than the 5x x16 versions. {{Source\|handle=gpmickey\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1557481786802573433}}
	* A Broadcom redriver/retimer board is the other option GlobalApathy knows for adding slots. {{Source\|handle=globalapathy\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1557486128154550444}}		* A Broadcom redriver/retimer board is the other option GlobalApathy knows for adding slots. {{Source\|handle=globalapathy\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1557486128154550444}}
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	* '''MMIO behind switches:''' OB88594 says many boards show MMIO problems behind a PLX switch, so only mailbox P2P is usable there, and in tensor parallel that mailbox P2P crashes the inference program with Xid 13. {{Source\|handle=ob88594\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557383845844615241}} Some PLX machines have too little MMIO for the 64 GB BAR, and the Morrowmake P2P mode runs with a 64 MB BAR. {{Source\|handle=ob88594\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556527198540922981}}		* '''MMIO behind switches:''' OB88594 says many boards show MMIO problems behind a PLX switch, so only mailbox P2P is usable there, and in tensor parallel that mailbox P2P crashes the inference program with Xid 13. {{Source\|handle=ob88594\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557383845844615241}} Some PLX machines have too little MMIO for the 64 GB BAR, and the Morrowmake P2P mode runs with a 64 MB BAR. {{Source\|handle=ob88594\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556527198540922981}}
	* '''Switch firmware:''' replacedriver47 found his PEX88096 firmware lacked hotplug, which he says is required to remap BAR addressing behind the switch. {{Source\|handle=replacedriver47\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563580726882861097}}		* '''Switch firmware:''' replacedriver47 found his PEX88096 firmware lacked hotplug, which he says is required to remap BAR addressing behind the switch. {{Source\|handle=replacedriver47\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563580726882861097}}
			* {{Status\|Reported}} '''P2P never completes behind a PLX 88096, even at 64 GB BAR1.''' replacedriver47 has four cards behind a PLX 88096 switch. By tuning MMIOH and BAR sizes he got two of them to a 64 GB BAR1 (the MMIOH window is too small for all four at 64 GB), but even between those two, P2P transfers never complete. He had heard Morrowmake's cmpunlocker makes P2P work; it did not for him, and he wants the root cause before he enlarges MMIOH further. mrpandagod pointed him to PixelML's [https://github.com/PixelML/club-170hx/blob/main/notebooks/2026-10-01-cmp170hx-4card-bar1-p2p-plx-cuda.ipynb notebook on 4-card BAR1 P2P over PLX with CUDA]. ElectroHobo had P2P working with an older method and thinks Morrowmake's vLLM fixes it for many people on supported hardware. The root cause is unresolved. See [[P2P]] and [[Minisforum MS-01]]. {{Source\|handle=replacedriver47\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563629249502515205}}<br />{{Source\|handle=replacedriver47\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563629333552177284}}<br />{{Source\|handle=replacedriver47\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563629405589475550}}<br />{{Source\|handle=replacedriver47\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563629971082186753}}<br />{{Source\|handle=replacedriver47\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563633438450393259}}<br />{{Source\|handle=djpandaman\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563629622673936384\|repo=https://github.com/PixelML/club-170hx}}<br />{{Source\|handle=nathang6866\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1564023832107417662}}
	* '''Per-slot bifurcation on a PEX88096''' needs a custom SBR (switch firmware). The seller alifond reprogrammed the last slot of peter643's board to 4x x4 before shipping but would not share the image or other custom firmware, citing an NDA; peter643 later worked out how to build his own; an open hardware project page has the procedure and files, and peter643 believes only about 8 bytes change (4 setting bytes and 4 CRC bytes). {{Source\|handle=peter643\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557518262659711000}}<br />{{Source\|handle=peter643\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557534181284913273}}<br />{{Source\|handle=peter643\|date=2026-10-08\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557765698011402402}}<br />{{Source\|handle=peter643\|date=2026-10-08\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557792050739417210}} He prefers the 88096's own port bifurcation over a second PEX switch, which costs power and about 300 USD but could give 8x x4 NVMe for more random IOPS. {{Source\|handle=peter643\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557535072008151174}}		* '''Per-slot bifurcation on a PEX88096''' needs a custom SBR (switch firmware). The seller alifond reprogrammed the last slot of peter643's board to 4x x4 before shipping but would not share the image or other custom firmware, citing an NDA; peter643 later worked out how to build his own; an open hardware project page has the procedure and files, and peter643 believes only about 8 bytes change (4 setting bytes and 4 CRC bytes). {{Source\|handle=peter643\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557518262659711000}}<br />{{Source\|handle=peter643\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557534181284913273}}<br />{{Source\|handle=peter643\|date=2026-10-08\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557765698011402402}}<br />{{Source\|handle=peter643\|date=2026-10-08\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557792050739417210}} He prefers the 88096's own port bifurcation over a second PEX switch, which costs power and about 300 USD but could give 8x x4 NVMe for more random IOPS. {{Source\|handle=peter643\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557535072008151174}}
	* '''Five slots, four cards:''' cibernox's switch takes 5 cards; he stops at 4 (256 GB) because he does not expect TP to scale well past 4 cards and 320 GB opens few extra models; Sojun agrees 256 GB is a reasonable stopping point. {{Status\|Theory}} {{Source\|handle=cibernox\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557428289365082245}}<br />{{Source\|handle=sojun80\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557430622245359738}}		* '''Five slots, four cards:''' cibernox's switch takes 5 cards; he stops at 4 (256 GB) because he does not expect TP to scale well past 4 cards and 320 GB opens few extra models; Sojun agrees 256 GB is a reasonable stopping point. {{Status\|Theory}} {{Source\|handle=cibernox\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557428289365082245}}<br />{{Source\|handle=sojun80\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557430622245359738}}

Resizable BAR and BAR1 64 GB

ImportBot — Fri, 30 Oct 2026 10:02:34 GMT

The BAR1 64 MB to 64 GB resize in cmpunlocker, what the board must provide (Above 4G decoding, large MMIO window), and the boards where it will not allocate. Discord Oct 2026. Gap-fill from #general 2026-10-25 (ReBAR reference), @da6b.

← Older revision		Revision as of 10:02, 30 October 2026
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	[[P2P]], [[Platforms]], [[Driver unlock]], [[Kernel parameters and module options]], [[Troubleshooting]].		[[P2P]], [[Platforms]], [[Driver unlock]], [[Kernel parameters and module options]], [[Troubleshooting]].

			Background reading on Linux resizable BAR, not tested with a CMP 170HX: Jeff Geerling's
			[https://www.jeffgeerling.com/blog/2025/resizeable-bar-support-on-raspberry-pi/ Resizeable BAR support on the Raspberry Pi],
			shared by dagb for anyone fighting resizable BAR.
			{{Source\|handle=da6b\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1564012643637928010}}

	{{ImportFooter}}		{{ImportFooter}}

Recovery

ImportBot — Fri, 30 Oct 2026 10:02:33 GMT

How owners recovered wedged, fallen-off and stock-reverted cards and stuck hosts (reset ladder, cold boot, boot-time escapes), what cannot be undone, and board-level repair of dead cards; from the cmpunlocker Discord (2026-10-04 to 10-28) and community repos (Consensus-Protocol, club-170hx, cmp170hx-testsuite, cmpunlocker, 170tune, 170hx_tips); credits inline; sources: @boz._., @rrickk420, @bigptoughneigh, @c133, @lxtend, @darkmaniac7, @reala7096, @domrockt2, @djpandaman, @rh

← Older revision		Revision as of 10:02, 30 October 2026
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	=== Shipping damage ===		=== Shipping damage ===
	A card that ~~was not detected after~~ a hard hit in shipping may ~~need a reball; a technician~~ with a multimeter ~~can replace~~ 0402 capacitors, ~~but~~ reballing a ~~die~~ the size of the ~~GA100 needs~~ a lot of gear and experience.		A card that took a hard hit in shipping and is no longer detected on PCIe may still be fixable if it cannot be returned: open it and measure it with a multimeter. Replacing 0402 capacitors is work an owner with an iron can do at home; if the core needs a reball, it goes out to a shop with the right equipment, because reballing a chip the size of the CMP 170HX's takes a lot of gear and experience.

	{{Status\|Reported}}<br />		{{Status\|Reported}}<br />
	{{Source\|handle=_orrorin\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561383811860922522}}		{{Source\|handle=xeax\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561381544353075330}}<br />
			{{Source\|handle=xeax\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561381677832474716}}<br />
			{{Source\|handle=_orrorin\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561383811860922522}}<br />
			{{Source\|handle=globalapathy\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561384151473586410}}

	Capacitor-mod link problems and their fixes are on [[Card not detected or BAR allocation fails]].		Capacitor-mod link problems and their fixes are on [[Card not detected or BAR allocation fails]].

Recipes

ImportBot — Fri, 30 Oct 2026 10:02:32 GMT

Import: Recipes overview from the recipes lane: card-count guide, table of recipe pages, choosing a model, engine and layout; Discord (clanker-talk, general, testing, development, hardware), 33 GitHub repos and Ivan's lab notes; gap-fill from #general 2026-10-23 to 10-26: @wakeupmbrc1, @phoenixone7, @con3po7016, @segmond, @amishrakefightr, @c133, @feralzi, @_orrorin, @zingy90210

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RIR fuse burn

ImportBot — Fri, 30 Oct 2026 10:02:31 GMT

The permanent RIR fuse burn that clears disable_sw_override on the 10 GB card, the one write that opens Gen3, full SM and the 6th stack; commands from lixiangwuxian/170hx-rir-tool; Discord Oct 2026.; sources: @_orrorin, @scallion_9883, @lxtend, @djpandaman, @lycorascence, @xeax, @ob88594, @petrikrohn_26497, @aaasss1456, @zorg33; GitHub evanrodgers/cmp-170hx-rir-burn-util, lixiangwuxian/170hx-rir-tool

← Older revision		Revision as of 10:02, 30 October 2026
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	refuses a row whose existing slots are non-zero and differ from the request, saves a before/after backup, and requires		refuses a row whose existing slots are non-zero and differ from the request, saves a before/after backup, and requires
	two confirmations (type the row number, then <code>BURN</code>). A plain <code>sudo reboot</code> is enough for 99.9%		two confirmations (type the row number, then <code>BURN</code>). A plain <code>sudo reboot</code> is enough for 99.9%
	of cases; you do not need hot-swap. {{Source\|lxtend\|2026-10-13\|https://discord.com/channels/1518634379604136178/1518695328008638516/~~1559382709753745472~~}}		of cases; you do not need hot-swap. {{Source\|handle=lxtend\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1559461961564033106}}

	Register map the tool uses: FUSECTRL <code>0x00820000</code>, FUSEADDR <code>0x00820004</code>, FUSERDATA		Register map the tool uses: FUSECTRL <code>0x00820000</code>, FUSEADDR <code>0x00820004</code>, FUSERDATA
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	<code>0x00150095</code> pair, and after that everything is software.		<code>0x00150095</code> pair, and after that everything is software.
	{{Source\|_orrorin\|2026-10-09\|https://discord.com/channels/1518634379604136178/1518695328008638516/1558179701527154849}}<br />		{{Source\|_orrorin\|2026-10-09\|https://discord.com/channels/1518634379604136178/1518695328008638516/1558179701527154849}}<br />
	{{Source\|petrikrohn_26497\|2026-10-09\|https://discord.com/channels/1518634379604136178/1518695328008638516/~~1558213762589397094~~}}		{{Source\|handle=petrikrohn_26497\|date=2026-10-10\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1558298536813006952}}
	* '''Humvee55's method notes''' (<code>message.txt</code>, 10,097 B, posted earlier in a smaller group): his RIR plus		* '''Humvee55's method notes''' (<code>message.txt</code>, 10,097 B, posted earlier in a smaller group): his RIR plus
	software-IFF method for the full 10 GB unlock; his advice was to feed it to an LLM to fill the gaps. Feralzi and		software-IFF method for the full 10 GB unlock; his advice was to feed it to an LLM to fill the gaps. Feralzi and

Qwen3.8 Flash Next on 2x 8 GB (ElectroHobo W4A16 TP2)

ImportBot — Fri, 30 Oct 2026 10:02:29 GMT

Import: ElectroHobo/qwen38-flash-next-w4a16-2x-cmp170hx-recipe 0.1.0 to 0.3.1 (repo and Discord posts); Miséricorde on the drafter; Ivan's lab run of four instances; gap-fill from #general 2026-10-25 (P2P), @galygious2, @nathang6866

← Older revision		Revision as of 10:02, 30 October 2026
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	* Community recipe, not tested or endorsed by Morrowmake or halt95; measured on one Broadwell host. The engine image is pinned by digest and the patches to engine commit 18305948ac, so a new engine release needs them re-made. 0.3.0 (table on disk) had not served real traffic at release.		* Community recipe, not tested or endorsed by Morrowmake or halt95; measured on one Broadwell host. The engine image is pinned by digest and the patches to engine commit 18305948ac, so a new engine release needs them re-made. 0.3.0 (table on disk) had not served real traffic at release.
	* <code><nowiki>KV_OFFLOAD_DIR</nowiki></code> is write-through and never pruned (one benchmark run wrote 58 GB).		* <code><nowiki>KV_OFFLOAD_DIR</nowiki></code> is write-through and never pruned (one benchmark run wrote 58 GB).
			* '''P2P on other unlock builds.''' galygious2 found the recipe promising for x16-modded cards but saw it needs P2P, and asked whether anyone has P2P working with Amogh's unlock. ElectroHobo had P2P working with an older method, and thinks Morrowmake's vLLM fixes it for many people on supported hardware. Setups where P2P still fails are on [[P2P]] and [[Risers and bifurcation]]. {{Source\|handle=galygious2\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563940267365507132}}<br />{{Source\|handle=nathang6866\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1564023832107417662}}
	{{Source\|handle=nathang6866\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1563590746710478919\|repo=https://github.com/ElectroHobo/qwen38-flash-next-w4a16-2x-cmp170hx-recipe}}		{{Source\|handle=nathang6866\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1563590746710478919\|repo=https://github.com/ElectroHobo/qwen38-flash-next-w4a16-2x-cmp170hx-recipe}}
	* Keep vLLM's custom all-reduce on with this recipe: on Ivan's box turning it off cost 17 to 25% single-stream and 12 to 15% at 8 users. This is the opposite of what he measured for GLM 5.3 Flash TP4 (see [[GLM 5.3 Flash on 4x 8 GB]]). {{Source\|handle=darkmaniac7\|date=2026-10-28\|note=lab notes}}		* Keep vLLM's custom all-reduce on with this recipe: on Ivan's box turning it off cost 17 to 25% single-stream and 12 to 15% at 8 users. This is the opposite of what he measured for GLM 5.3 Flash TP4 (see [[GLM 5.3 Flash on 4x 8 GB]]). {{Source\|handle=darkmaniac7\|date=2026-10-28\|note=lab notes}}

Qwen3.8 27B on 1x 8 GB (W4A16 vLLM)

ImportBot — Fri, 30 Oct 2026 10:02:28 GMT

Import: The r/LocalLLM 'Qwen3.8-27B W4A16 on one 64 GB CMP 170HX' recipe as reproduced by kellertreppe123, plus single-card 27B reports by Miséricorde, clee, regaly, GlobalApathy, AmishRakeFightr, Programmer007, Phoenix17, matstatman, ikyo and others; gap-fill from #general 2026-10-23 to 10-25: @phoenixone7, @feralzi, @riko6253

← Older revision		Revision as of 10:02, 30 October 2026
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	* Phoenix17 published concurrency benchmarks for his [https://huggingface.co/akumaburn/Swift-1.5-Qwen3.8-27b-heretic-W8A8-DFlash2 Swift-1.5-Qwen3.8-27b-heretic-W8A8-DFlash2] on the Hugging Face card; the prefill column there is per stream and must be multiplied by concurrency. {{Source\|handle=phoenixone7\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556478763229782069}}		* Phoenix17 published concurrency benchmarks for his [https://huggingface.co/akumaburn/Swift-1.5-Qwen3.8-27b-heretic-W8A8-DFlash2 Swift-1.5-Qwen3.8-27b-heretic-W8A8-DFlash2] on the Hugging Face card; the prefill column there is per stream and must be multiplied by concurrency. {{Source\|handle=phoenixone7\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556478763229782069}}
			* Phoenix17 runs two 64 GB cards (128 GB). Swift 1.5 is a heretic fine-tune of the 27B that he says cuts much of the stock model's verbosity; his W8A8 quant of it leaves room for about 700K tokens of context on one card, enough for at least 2 streams per card, and he has a drafter for it. Engine and tok/s were not posted. A generic, software-oriented AGENTS.md he shared on [https://www.reddit.com/r/LocalLLaMA/comments/1xduw88/updated_agentsmd_generic_software_oriented/ r/LocalLLaMA] cuts verbosity further. {{Source\|handle=phoenixone7\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563206633897730109}}<br />{{Source\|handle=phoenixone7\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563206670149091419}}<br />{{Source\|handle=phoenixone7\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563206711056011336}}<br />{{Source\|handle=phoenixone7\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563206987183820801}}<br />{{Source\|handle=phoenixone7\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563351523121959074}}<br />{{Source\|handle=phoenixone7\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563954988324233327}}<br />{{Source\|handle=phoenixone7\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563955803566776465}}
	* Feralzi reached 225 tok/s on Qwen 3.8 27B with vLLM's integer kernels; matstatman notes that number is with DFlash at temperature 0, "nothing you want to code with". {{Source\|handle=feralzi\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559796537935142963}}<br />{{Source\|handle=matstatman\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559942424833429586}}		* Feralzi reached 225 tok/s on Qwen 3.8 27B with vLLM's integer kernels; matstatman notes that number is with DFlash at temperature 0, "nothing you want to code with". {{Source\|handle=feralzi\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559796537935142963}}<br />{{Source\|handle=matstatman\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559942424833429586}}
	* Feralzi's setup is written up in his r/LocalLLM post [https://www.reddit.com/r/LocalLLM/s/fByBcAGshN "Qwen 3.8 27B reaching 225 t/s on 132k context on CMP 170HX"]: vLLM with the quantized kernels at 132k context. Every card is different, so he stepped through overclock settings card by card until he found one that was stable and would not crash; he says the right overclock runs the card cooler, at lower wattage and faster. Temperatures stay around 70 C and he runs agents through the night without a crash. Shirogeek's caution: decode-maxing numbers are hard to trust, and temperature 0 is for repeatable tests, not real-life speed. {{Source\|handle=feralzi\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559808093913747507}}<br />{{Source\|handle=feralzi\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559813127498104944}}<br />{{Source\|handle=feralzi\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559813794866143333}}<br />{{Source\|handle=feralzi\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559814006884270171}}<br />{{Source\|handle=shirogeek\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559948236016586753}}		* Feralzi's setup is written up in his r/LocalLLM post [https://www.reddit.com/r/LocalLLM/s/fByBcAGshN "Qwen 3.8 27B reaching 225 t/s on 132k context on CMP 170HX"]: vLLM with the quantized kernels at 132k context. Every card is different, so he stepped through overclock settings card by card until he found one that was stable and would not crash; he says the right overclock runs the card cooler, at lower wattage and faster. Temperatures stay around 70 C and he runs agents through the night without a crash. Shirogeek's caution: decode-maxing numbers are hard to trust, and temperature 0 is for repeatable tests, not real-life speed. On 2026-10-25 Feralzi again reported over 200 tok/s with the 27B on his CMP (a 40 GB card by his other posts that day); quant, engine and speculative decoding were not stated. {{Source\|handle=feralzi\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1564051736979701845}}<br />{{Source\|handle=feralzi\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563956858774098044}} {{Source\|handle=feralzi\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559808093913747507}}<br />{{Source\|handle=feralzi\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559813127498104944}}<br />{{Source\|handle=feralzi\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559813794866143333}}<br />{{Source\|handle=feralzi\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559814006884270171}}<br />{{Source\|handle=shirogeek\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559948236016586753}}

	== Speculative decoding ==		== Speculative decoding ==
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	* clee suspects a host RAM bit flip (48 h clean memtest, then an unexplained page cache corruption): use ECC memory on these hosts. {{Source\|handle=c133\|date=2026-10-16\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1560618032307507241}}		* clee suspects a host RAM bit flip (48 h clean memtest, then an unexplained page cache corruption): use ECC memory on these hosts. {{Source\|handle=c133\|date=2026-10-16\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1560618032307507241}}
	* The 27B against Flash Next is a matter of taste: see [[Recipes]].		* The 27B against Flash Next is a matter of taste: see [[Recipes]].
			* riko got random errors in real tasks with the 27B at first; "with hardware everything is fine now", and he runs it at W4A16 on a single 64 GB card. The cause of the earlier errors was not stated. See [https://discord.com/channels/1518634379604136178/1518692084729511967/1563957829059223645 Discord]. {{Source\|handle=riko6253\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563957829059223645}}

	== Sources ==		== Sources ==

Power supplies and cabling

ImportBot — Fri, 30 Oct 2026 10:02:27 GMT

The CMP 170HX power input, cable rules, connector ratings, PSU sizing per card count, burned and failed hardware, wall power; from the cmpunlocker Discord (2026-10-04 to 10-27, including the asrock PG-1600g thread), PixelML/club-170hx and Ivan's lab notes; gap-fill from #general 2026-10-23 (400 W spike at a 250 W limit), @djpandaman, @xeax

Platforms

ImportBot — Fri, 30 Oct 2026 10:02:24 GMT

Overview of boards, servers and hosts reported with CMP 170HX cards (Gen2, BAR1, P2P, cards per host), from Discord platform reports, PixelML/club-170hx, anoane/01-proxmox-dual-gpu-passthrough and @darkmaniac7 (Ivan) lab notes

← Older revision		Revision as of 10:02, 30 October 2026
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	** Miséricorde: RDIMMs do not need to be matched; you can even mix ICs (he bought 11 used 16 GB sticks at 40 USD each for an EPYC Milan build). {{Source\|handle=wakeupmbrc1\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1560813031363973225}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1560813484072247297}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1560813506113306756}}		** Miséricorde: RDIMMs do not need to be matched; you can even mix ICs (he bought 11 used 16 GB sticks at 40 USD each for an EPYC Milan build). {{Source\|handle=wakeupmbrc1\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1560813031363973225}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1560813484072247297}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1560813506113306756}}
	** endsjeremy: he insists on type and revision matching, especially with used dual-rank memory. {{Source\|handle=endsjeremy\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1560813660652314675}}		** endsjeremy: he insists on type and revision matching, especially with used dual-rank memory. {{Source\|handle=endsjeremy\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1560813660652314675}}
	* '''CPU cooler:''' GlobalApathy ~~and Dc both use~~ the Arctic SP3 cooler ~~on their EPYC hosts~~; Dc: it keeps the CPU cool and is silent. {{Source\|handle=globalapathy\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558682489017335870}}<br />{{Source\|handle=daveedcoles\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558694978979500043}}		* '''CPU cooler:''' GlobalApathy rates the Arctic cooler for SP3 (EPYC) as pretty good. He recognised the same Arctic cooler in Dc's build photo; Dc did not name the model, and says it keeps the CPU cool and is silent. {{Source\|handle=globalapathy\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558682489017335870}}<br />{{Source\|handle=daveedcoles\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558694978979500043}}<br />{{Source\|handle=globalapathy\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559752062852669461}}
	* '''Renting the box out:''' endsjeremy suggests about 2:1 system RAM to VRAM and more than 16 cores for rentals. {{Source\|handle=endsjeremy\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557504597457903700}}<br />{{Source\|handle=endsjeremy\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557504862894424179}}		* '''Renting the box out:''' endsjeremy suggests about 2:1 system RAM to VRAM and more than 16 cores for rentals. {{Source\|handle=endsjeremy\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557504597457903700}}<br />{{Source\|handle=endsjeremy\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557504862894424179}}
	* '''Broadwell CPUs''' may halve some Qwen Flash recipe numbers (ElectroHobo); segmond attributes the same gap to no x16 and no P2P. {{Status\|Theory}} {{Source\|handle=segmond\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1561950054254645291}}<br />{{Source\|handle=nathang6866\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1561951080882114701}}		* '''Broadwell CPUs''' may halve some Qwen Flash recipe numbers (ElectroHobo); segmond attributes the same gap to no x16 and no P2P. {{Status\|Theory}} {{Source\|handle=segmond\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1561950054254645291}}<br />{{Source\|handle=nathang6866\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1561951080882114701}}

PCIe x16 capacitor mod

ImportBot — Fri, 30 Oct 2026 10:02:23 GMT

Import: PCIe x16 capacitor mod (width x4 to x16), parts, placement, technique, results and failures; amoghmunikote/170th-Street, Consensus-Protocol, @lxtend, @djpandaman, @anon33anon, @globalapathy, @neapopa, @bigfoot1144, @exile_1ck and others

← Older revision		Revision as of 10:02, 30 October 2026
Line 109:		Line 109:
	* @_arcanum_: microsoldering tweezers are essential, the capacitors are almost impossible to handle otherwise; clean		* @_arcanum_: microsoldering tweezers are essential, the capacitors are almost impossible to handle otherwise; clean
	with isopropyl alcohol, foam swabs, a brush and wipes.		with isopropyl alcohol, foam swabs, a brush and wipes.
			* @gpmickey (twelve cards to do): an upgraded soldering iron, a digital scope and a hot-air station on top of the DMM
			he had, plus extra flux, solder and braid so he would not run short. @globalapathy added a 50 MHz scope meter for
			under 100 USD.

	More tools are on [[Tools]].		More tools are on [[Tools]].

	{{Status\|Reported}} {{Cards\|both}}<br />		{{Status\|Reported}} {{Cards\|both}}<br />
			{{Source\|handle=globalapathy\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558677685541281927}}<br />
			{{Source\|handle=gpmickey\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558674179950383125}}<br />
			{{Source\|handle=gpmickey\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558681059644805231}}<br />
	{{Source\|handle=civiloid\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558803228362145833}}<br />		{{Source\|handle=civiloid\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558803228362145833}}<br />
	{{Source\|handle=_arcanum_\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558857956961820794}}<br />		{{Source\|handle=_arcanum_\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558857956961820794}}<br />

PCIe Gen3 on the 10 GB card

ImportBot — Fri, 30 Oct 2026 10:02:22 GMT

Gen3 (and reported Gen4) link training on the 10 GB card after the RIR burn; commands from lixiangwuxian/170hx_tips and evanrodgers; Discord Oct 2026. 8 GB card cannot do this.; sources: @lxtend, @djpandaman, @wakeupmbrc1, @darkshad03, @alanoo, @dany0_, @rrickk420, @hezz1891, @replacedriver47, @ropuls; GitHub Consensus-Protocol/cmp170hx, evanrodgers/cmp-170hx-rir-burn-util, lixiangwuxian/170hx_tips

← Older revision		Revision as of 10:02, 30 October 2026
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	{{Source\|djpandaman\|2026-10-08\|https://discord.com/channels/1518634379604136178/1518695328008638516/1557879842152648776}}		{{Source\|djpandaman\|2026-10-08\|https://discord.com/channels/1518634379604136178/1518695328008638516/1557879842152648776}}
	On the 8 GB card that fuse register is locked and there is no spare RIR to clear it, so Gen3 "retrain" is blocked.		On the 8 GB card that fuse register is locked and there is no spare RIR to clear it, so Gen3 "retrain" is blocked.
	{{Source\|wakeupmbrc1\|2026-10-18\|https://discord.com/channels/1518634379604136178/1518695328008638516/~~1563810876778217483~~}}		{{Source\|wakeupmbrc1\|2026-10-25\|https://discord.com/channels/1518634379604136178/1518695328008638516/1563815547462881323}}<br />
			{{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1563815629469777931}}
	A probe on a 10 GB card confirms all three Gen3 fuses read 1 at stock (<code>OPT_DISABLE_GEN3_SPEED=1</code>,		A probe on a 10 GB card confirms all three Gen3 fuses read 1 at stock (<code>OPT_DISABLE_GEN3_SPEED=1</code>,
	<code>OPT_PCIE_BOOT_GEN23_DISABLE=1</code>, <code>OPT_PCIE_BOOT_GEN3_DISABLE=1</code>), which is why the gate must be		<code>OPT_PCIE_BOOT_GEN23_DISABLE=1</code>, <code>OPT_PCIE_BOOT_GEN3_DISABLE=1</code>), which is why the gate must be
Line 36:		Line 37:
	(@lxtend). It has three parts: a probe-time fuse software override, a post-GSP Gen3 register sequence inside the driver,		(@lxtend). It has three parts: a probe-time fuse software override, a post-GSP Gen3 register sequence inside the driver,
	and RM link training. Only <code>LnkSta: Speed 8GT/s</code> counts as success, not LnkCap or LnkCtl2.		and RM link training. Only <code>LnkSta: Speed 8GT/s</code> counts as success, not LnkCap or LnkCtl2.
			The guide itself does not say it is for the 10 GB card only; that is stated in the 170hx_tips README (@alanoo asked
			for it to be added to the doc, @lxtend pointed to the README).
			{{Source\|handle=alanoo\|date=2026-10-19\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1561660485412192267}}<br />
			{{Source\|handle=lxtend\|date=2026-10-19\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1561661562681303041}}

	Module parameters (merge into your existing config, keep one value per key):		Module parameters (merge into your existing config, keep one value per key):
Line 81:		Line 86:
	* Contested whether Gen3 is consistent enough across cards to call "unlocked"; some think it needs a soldering iron or		* Contested whether Gen3 is consistent enough across cards to call "unlocked"; some think it needs a soldering iron or
	will not generalise. {{Source\|dany0_\|2026-10-07\|https://discord.com/channels/1518634379604136178/1528513735575081070/1557398054985011281}}		will not generalise. {{Source\|dany0_\|2026-10-07\|https://discord.com/channels/1518634379604136178/1528513735575081070/1557398054985011281}}
			* {{Status\|Contested}} The GitHub record and the chat disagree, in the order posted:
			** Consensus-Protocol's Gen3/Gen4 write-up (as of 2026-07-28): no Gen3 or Gen4 link has ever trained on a CMP 170HX. Gen3 could be advertised (<code>LnkCap</code> 8 GT/s, target 8 GT/s accepted) while <code>LnkSta</code> stayed at 2.5 GT/s; both Gen fuses (<code>0x0082057c</code>, <code>0x00820580</code>) read 1 and the write to <code>0x0082057c</code> fails. These attempts predate the 10 GB RIR route. {{Source\|handle=rrickk420\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1558127650223030302\|repo=https://github.com/Consensus-Protocol/cmp170hx}}
			** After the RIR burn, lxwx, mrpandagod and evanrodgers report Gen3 links (above); the evanrodgers README records <code>LnkSta</code> 8 GT/s on both ends for two cards. A post-burn fuse read plus <code>LnkSta</code> from more owners would settle it. {{Source\|handle=hezz1891\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1564222043363352576\|repo=https://github.com/evanrodgers/cmp-170hx-rir-burn-util}}
	* '''replacedriver47's earlier attempt''' (<code>cmp170hx-gen3-summary.md</code>, AI-drafted, superseded by lxwx's		* '''replacedriver47's earlier attempt''' (<code>cmp170hx-gen3-summary.md</code>, AI-drafted, superseded by lxwx's
	working guide): it proposed bringing up Gen3/Gen4 through the same XCE/CYA PCIe port-controller registers the Gen2		working guide): it proposed bringing up Gen3/Gen4 through the same XCE/CYA PCIe port-controller registers the Gen2

P2P

ImportBot — Fri, 30 Oct 2026 10:02:21 GMT

GPU-to-GPU peer-to-peer on the CMP 170HX: the mailbox path (Morrowmake/asm64 forks), the BAR1 path, the ForceP2P registry key, topology limits and verification. Discord Oct 2026. Gap-fill from #general 2026-10-24 to 10-25 (PLX 88096 P2P failure), @replacedriver47, @djpandaman, @nathang6866.

← Older revision		Revision as of 10:02, 30 October 2026
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	applies even on a single-switch setup. Measured cross-root P2P latency about 1.5 us (not through a switch). His TP2 on		applies even on a single-switch setup. Measured cross-root P2P latency about 1.5 us (not through a switch). His TP2 on
	2x CMP: about 4,900 tok/s prefill at 128k (TTFT 26 s) versus about 2,500 without P2P; decode about 223 tok/s at one		2x CMP: about 4,900 tok/s prefill at 128k (TTFT 26 s) versus about 2,500 without P2P; decode about 223 tok/s at one
	session, 527 tok/s aggregate at four (W4A16, MTP4). {{Source\|ropuls\|2026-10-15\|https://discord.com/channels/1518634379604136178/1528826330454429706/~~1560412308469973125~~}}		session, 527 tok/s aggregate at four (W4A16, MTP4). {{Source\|handle=mountains1605\|date=2026-10-15\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1560433160364490782}}<br />{{Source\|handle=ropuls\|date=2026-10-16\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1560593914363256965}}

	== Verify ==		== Verify ==
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	* '''Dual-socket:''' P2P does not work across sockets; GPU servers hang all cards off one CPU's root port. Mitigations		* '''Dual-socket:''' P2P does not work across sockets; GPU servers hang all cards off one CPU's root port. Mitigations
	are the mailbox method or bayley's kernel patch. {{Source\|wakeupmbrc1\|2026-10-18\|https://discord.com/channels/1518634379604136178/1518692084729511967/1561407364622458943}}		are the mailbox method or bayley's kernel patch. {{Source\|wakeupmbrc1\|2026-10-18\|https://discord.com/channels/1518634379604136178/1518692084729511967/1561407364622458943}}
			** Measured counterexample: on an 8-card dual-EPYC Supermicro H12DSG-O-CPU, the Morrowmake P2P build on 615.71.09 passed 504 of 504 content checks including every cross-socket pair, with <code>cuDeviceCanAccessPeer</code> 1 everywhere and 0 Xids, again after later cold cycles. {{Status\|Proven}} See [[Supermicro H12DSG-O-CPU]]. {{Source\|handle=darkmaniac7\|date=2026-10-27\|note=lab notes}}
	* '''Latency reference:''' about 1.4-1.7 us native (CPU root / crossbar), about 14 us through a retimer plus two		* '''Latency reference:''' about 1.4-1.7 us native (CPU root / crossbar), about 14 us through a retimer plus two
	switches. {{Source\|markshowa\|2026-10-17\|https://discord.com/channels/1518634379604136178/1518692084729511967/1561013734808363029}}		switches. {{Source\|markshowa\|2026-10-17\|https://discord.com/channels/1518634379604136178/1518692084729511967/1561013734808363029}}
			* '''PLX 88096 with a 64 GB BAR1, P2P still failing:''' four cards behind a PLX 88096; after MMIOH and BAR tuning two of
			them had a 64 GB BAR1, but P2P transfers between them never completed, with Morrowmake's cmpunlocker as well. The root
			cause is unknown. People point to PixelML's 4-card BAR1 P2P over PLX notebook as the reference, and ElectroHobo thinks
			Morrowmake's vLLM fixes it for many people on supported hardware. Details: [[Risers and bifurcation]].
			{{Source\|handle=replacedriver47\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563629971082186753}}<br />
			{{Source\|handle=djpandaman\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563629622673936384\|repo=https://github.com/PixelML/club-170hx}}<br />
			{{Source\|handle=nathang6866\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1564023832107417662}}
	* P2P across different root complexes on a Threadripper board (older asm64 fork) looked right but no traffic arrived;		* P2P across different root complexes on a Threadripper board (older asm64 fork) looked right but no traffic arrived;
	mrpandagod's advice is to build a local P2P patch for the specific setup.		mrpandagod's advice is to build a local P2P patch for the specific setup.
Line 95:		Line 103:
	* On boards that cannot route P2P (ACS, no IOMMU passthrough, separate roots), forcing it times out instead of staging		* On boards that cannot route P2P (ACS, no IOMMU passthrough, separate roots), forcing it times out instead of staging
	through system memory, which is why it is opt-in.		through system memory, which is why it is opt-in.
			* {{Status\|Contested}} '''Does P2P make inference faster?''' It depends on host and model; A/B it per recipe. In the order posted:
			** ElectroHobo: on a Broadwell host with one PLX switch, MiMo V2.6 Flash TP4 is about 40% slower with P2P off. {{Source\|handle=nathang6866\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1561264547455569952\|repo=https://github.com/ElectroHobo/mimo-v26-flash-cmp170hx-recipe}}
			** PixelML: on four cards behind two PLX switches on a Broadwell host, P2P helped Qwen3.8-27B TP2 decode (+11%) but hurt GLM 5.3 Flash TP4 (-20 to -26% for one user, -38 to -48% at eight users); they run TP4 with P2P off. Their notes cite Morrowmake measuring +11% from P2P on EPYC root ports. {{Source\|handle=c133\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1562161732137386127\|repo=https://github.com/PixelML/club-170hx}}
			** On an EPYC lab host, vLLM's custom all-reduce over P2P cost GLM 5.3 Flash TP4 about 40% decode but helped Qwen3.8 Flash Next TP2 by 17 to 25%. {{Source\|handle=darkmaniac7\|date=2026-10-28\|note=lab notes}}

	== Status ==		== Status ==

P-states and idle power

ImportBot — Fri, 30 Oct 2026 10:02:20 GMT

Idle power draw of the CMP 170HX and how to lower it (idle gate patches, refresh, A100 p-states, nvidia-pstated); from the cmpunlocker Discord (including the "Add p-states from A100 (pcie)" thread), cachenetics/170tune, vektorprime/170tune, PixelML/club-170hx and sasha0552/nvidia-pstated; sources: @nikhilr1696, @markshowa, @c133, @rh3dai, @ghostinthedatacenter_87281, @cibernox, @robbbbbb7973, @catchyuser, @vcore2191, @matstatman, @djpandaman, @d3m3n7r (+1 more); GitHub PixelM

← Older revision		Revision as of 10:02, 30 October 2026
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	\| 170tune reference card \|\| 36.9 W true idle at 405 MHz; 40.2 W with a server loaded at 1,140 MHz \|\| not given \|\| {{Status\|Reported}} \|\| {{Source\|handle=rh3dai\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1518695289278566450/1556287917775655053\|repo=https://github.com/vektorprime/170tune\|note=MIT license; fork of cachenetics/170tune}}		\| 170tune reference card \|\| 36.9 W true idle at 405 MHz; 40.2 W with a server loaded at 1,140 MHz \|\| not given \|\| {{Status\|Reported}} \|\| {{Source\|handle=rh3dai\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1518695289278566450/1556287917775655053\|repo=https://github.com/vektorprime/170tune\|note=MIT license; fork of cachenetics/170tune}}
	\|-		\|-
	\| 8 GB and 10 GB card after repaste \|\| about 33 W each \|\| memory 37 C (8 GB) and 41 C (10 GB) \|\| {{Status\|Reported}} \|\| {{Source\|handle=ghostinthedatacenter_87281\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559651382816936108}}		\| 8 GB and 10 GB card on one host, after a repaste (PTM on the 8 GB card) \|\| about 33 W each \|\| memory 37 C (8 GB) and 41 C (10 GB) \|\| {{Status\|Reported}} \|\| {{Source\|handle=ghostinthedatacenter_87281\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559651382816936108}}<br />{{Source\|handle=ghostinthedatacenter_87281\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559653025700909117}}
	\|-		\|-
	\| "Some tweaks" (not specified) \|\| about 29 W \|\| not given \|\| {{Status\|Reported}} \|\| {{Source\|handle=cibernox\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557492738205941781}}		\| "Some tweaks" (not specified) \|\| about 29 W \|\| not given \|\| {{Status\|Reported}} \|\| {{Source\|handle=cibernox\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557492738205941781}}

Operating systems and kernels

ImportBot — Fri, 30 Oct 2026 10:02:19 GMT

Distros, kernels and driver versions reported working or failing with unlocked CMP 170HX cards, from Discord (Xeax, Kaatchi, HenryKrinkle, GalyGames, mrpandagod, ybryany, Lycorascence, Miséricorde, arabus and others), PixelML/club-170hx, anoane/01-proxmox-dual-gpu-passthrough and @darkmaniac7 (Ivan) lab notes; gap-fill from #general 2026-10-23 to 10-25: @da6b, @segmond, @mountains1605, @con3po7016, @nathang6866

NVLink

ImportBot — Fri, 30 Oct 2026 10:02:18 GMT

NVLink on the CMP 170HX: fused off, not publicly unlocked, the missing board components, bridge part numbers and why it would only help diffusion. Discord Oct 2026.; sources: @lia_oc, @cute_sc2, @_orrorin, @onemillionkates, @_arcanum_, @ghostinthedatacenter_87281, @bigptoughneigh, @ob88594, @djpandaman, @wakeupmbrc1

Memory unlock on the 10 GB card

ImportBot — Fri, 30 Oct 2026 10:02:17 GMT

The 10 GB card's memory ceiling: 40 GB from cmpunlocker, 48 GB on a lucky 6th stack, and why the disputed 80 GB is aliasing not memory. Discord Oct 2026 and the research repos.; sources: @_j3ns, @programmerboi, @djpandaman, @artistosu, @bigfoot1144, @_orrorin, @darkmaniac7, @rh3dai, @atsasin2126, @marklintonca, @tekkenz, @scallion_9883 (+6 more); GitHub ahnguyen17/ga100-fuse-re, amoghmunikote/cmpunlocker

Known bad combinations

ImportBot — Fri, 30 Oct 2026 10:02:14 GMT

Driver versions, unlock builds, kernels, tools, engines, boards, switches, risers, VM setups, PSUs and card types that failed for someone, from the cmpunlocker Discord (2026-10-04 to 10-28) and community repos; credits inline; gap-fill from #general 2026-10-24 (PLX 88096 P2P), @replacedriver47, @djpandaman, @nathang6866

← Older revision		Revision as of 10:02, 30 October 2026
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	\| {{Source\|handle=ybryany\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518695289278566450/1559747855546187787}}<br />{{Source\|handle=68x0\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518695289278566450/1559748133075034134}}		\| {{Source\|handle=ybryany\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518695289278566450/1559747855546187787}}<br />{{Source\|handle=68x0\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518695289278566450/1559748133075034134}}
	\|-		\|-
	\| gpu_unlock (consumer tensor unlock) + cmpunlocker on kernel 7.2.11, with ~~RTX 3090s~~ in the same box		\| gpu_unlock (consumer tensor unlock) + cmpunlocker on kernel 7.2.11, with other NVIDIA cards in the same box
	\| cmpunlocker link retraining broke until the kernel and driver were rolled back; the owner suspects gpu_unlock ~~touched more than the 3090s~~. Another member says gpu_unlock runs before the NVIDIA driver loads, is gated by PCI device ID and should just work beside cmpunlocker.		\| cmpunlocker link retraining broke until the kernel and driver were rolled back; the owner suspects gpu_unlock was "possibly not aiming just for 3090 cards". Another member says gpu_unlock runs before the NVIDIA driver loads, is gated by PCI device ID and should just work beside cmpunlocker.
	\| Roll back the kernel and driver		\| Roll back the kernel and driver
	\| {{Status\|Contested}}		\| {{Status\|Contested}}
Line 145:		Line 145:
	\| Wayland or Xorg desktop + a headless CMP you need to unbind		\| Wayland or Xorg desktop + a headless CMP you need to unbind
	\| The desktop grabs the card and blocks the unbind; excluding it broke the KDE login		\| The desktop grabs the card and blocks the unbind; excluding it broke the KDE login
	\| A headless host ~~or a~~ live disk		\| A headless host (disable the GUI, SSH in from another machine). A live disk alone did not get the RIR tool past the DEBUGCTRL latch for the same owner.
	\| {{Status\|Reported}}		\| {{Status\|Reported}}
	\| {{Source\|handle=lycorascence\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1560894809365942293}}		\| {{Source\|handle=lycorascence\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1560894809365942293}}<br />{{Source\|handle=lycorascence\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562134193612390562}}<br />{{Source\|handle=intervitens\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1563148178432458893}}
	\|-		\|-
	\| Gaming on Linux vs Windows		\| Gaming on Linux vs Windows
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	\|-		\|-
	\| Dual-socket hosts, cards on different sockets		\| Dual-socket hosts, cards on different sockets
	\| P2P across sockets does not work, according to one member; another says it can be mitigated by attaching the PLX switch to both CPUs		\| P2P across sockets does not work, according to one member; another says it can be mitigated by attaching the PLX switch to both CPUs. Measured against that: an 8-card dual-EPYC Supermicro H12DSG-O-CPU passed 504 of 504 P2P content checks, cross-socket pairs included, with the Morrowmake P2P build on 615.71.09 ([[Supermicro H12DSG-O-CPU]])
	\| Keep each tensor-parallel group on one socket		\| Keep each tensor-parallel group on one socket unless a content check passes across sockets
	\| {{Status\|Contested}}		\| {{Status\|Contested}}
	\| {{Source\|handle=wakeupmbrc1\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561407364622458943}}<br />{{Source\|handle=endsjeremy\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561407476752973835}}		\| {{Source\|handle=wakeupmbrc1\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561407364622458943}}<br />{{Source\|handle=endsjeremy\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561407476752973835}}<br />{{Source\|handle=darkmaniac7\|date=2026-10-27\|note=lab notes}}
	\|-		\|-
	\| Supermicro H12D-8D + DDR4-2133 4DRx4 LRDIMMs		\| Supermicro H12D-8D + DDR4-2133 4DRx4 LRDIMMs
Line 333:		Line 333:
	\| {{Status\|Reported}}		\| {{Status\|Reported}}
	\| {{Source\|handle=replacedriver47\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563580726882861097}}		\| {{Source\|handle=replacedriver47\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563580726882861097}}
			\|-
			\| PLX 88096, four cards, two of them at 64 GB BAR1 after MMIOH and BAR tuning, Morrowmake cmpunlocker
			\| P2P transfers never complete, even between the two cards with the 64 GB BAR1; root cause unknown
			\| None confirmed. PixelML's 4-card BAR1 P2P over PLX notebook is the reference people point to; ElectroHobo thinks Morrowmake's vLLM fixes it on supported hardware. See [[Risers and bifurcation]]
			\| {{Status\|Reported}}
			\| {{Source\|handle=replacedriver47\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563629971082186753}}<br />{{Source\|handle=djpandaman\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563629622673936384\|repo=https://github.com/PixelML/club-170hx}}<br />{{Source\|handle=nathang6866\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1564023832107417662}}
	\|-		\|-
	\| Two cards behind one PLX switch, BAR1 resized per card without locking		\| Two cards behind one PLX switch, BAR1 resized per card without locking

Gpcprobe

ImportBot — Fri, 30 Oct 2026 10:02:12 GMT

Import: gpcprobe and blackbox.py, @matstatman, @ghostinthedatacenter_87281, @globalapathy, @djpandaman, @kellertreppe123, @n2dcrypt; repos matstatman/gpcprobe, matstatman/hbmmon

← Older revision		Revision as of 10:02, 30 October 2026
Line 32:		Line 32:
	* '''Healthy, disabled, defective counts.''' A 10 GB card read GPC 5 healthy, 3 disabled, 1 defective and FBP 10, 2, 2. @matstatman: "1 defective is pretty good", "0 defective is god mode". {{Source\|handle=ghostinthedatacenter_87281\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1557485178023317635}}<br />{{Source\|handle=matstatman\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1557485484891050108}}<br />{{Source\|handle=matstatman\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1557485522488655984}} The same owner later sourced two 10 GB cards with no defective GPC, the best he could find. {{Source\|handle=ghostinthedatacenter_87281\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558157875715772506}}		* '''Healthy, disabled, defective counts.''' A 10 GB card read GPC 5 healthy, 3 disabled, 1 defective and FBP 10, 2, 2. @matstatman: "1 defective is pretty good", "0 defective is god mode". {{Source\|handle=ghostinthedatacenter_87281\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1557485178023317635}}<br />{{Source\|handle=matstatman\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1557485484891050108}}<br />{{Source\|handle=matstatman\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1557485522488655984}} The same owner later sourced two 10 GB cards with no defective GPC, the best he could find. {{Source\|handle=ghostinthedatacenter_87281\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558157875715772506}}
	* '''8 GB card reference.''' On the author's two 8 GB cards 16 of 24 memory partitions (FBPA) are active, a 4096-bit bus; FBP 6 and 11 are physically dead and FBP 1 and 4 only floorswept. The 64 GiB unlock is the same 16 partitions with a 4 GiB window each instead of 512 MiB. {{Source\|handle=matstatman\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562128904007843850\|repo=https://github.com/matstatman/gpcprobe}}. Variant details are on [[Which card do I have]].		* '''8 GB card reference.''' On the author's two 8 GB cards 16 of 24 memory partitions (FBPA) are active, a 4096-bit bus; FBP 6 and 11 are physically dead and FBP 1 and 4 only floorswept. The 64 GiB unlock is the same 16 partitions with a 4 GiB window each instead of 512 MiB. {{Source\|handle=matstatman\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562128904007843850\|repo=https://github.com/matstatman/gpcprobe}}. Variant details are on [[Which card do I have]].
	* '''Status shadows''' are the copies the firmware uses. A <code><nowiki>[!= fuse]</nowiki></code> flag means a live override differs from the fused value. {{Source\|handle=matstatman\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562128904007843850\|repo=https://github.com/matstatman/gpcprobe}}.		* '''Status shadows''' are the copies the firmware uses. A <code><nowiki>[!= fuse]</nowiki></code> flag means a live override differs from the fused value. {{Source\|handle=matstatman\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562128904007843850\|repo=https://github.com/matstatman/gpcprobe}}. Example from a 10 GB card whose sixth stack is disabled, not defective: <code><nowiki>STATUS_OPT_GPC 0x00000007</nowiki></code>, <code><nowiki>STATUS_FBP 0x00000840</nowiki></code>, <code><nowiki>STATUS_FBPA 0x00c03000</nowiki></code>, <code><nowiki>STATUS_OPT_FBIO 0x00c03000</nowiki></code>, <code><nowiki>STATUS_OPT_NVLINK 0x00000007</nowiki></code>, <code><nowiki>STATUS_HALF_FBPA 0x00000000</nowiki></code>, all <code><nowiki>[ok]</nowiki></code>. {{Source\|handle=lycorascence\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562228981489729560}}
	* '''The black box.''' Look at power-on time, boot count and the Xid log. One member's card showed 2,170 hours of uptime. {{Source\|handle=kellertreppe123\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562194914358599787}}		* '''The black box.''' Look at power-on time, boot count and the Xid log. One member's card showed 2,170 hours of uptime. {{Source\|handle=kellertreppe123\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562194914358599787}}

Line 43:		Line 43:
	* The SKU-wide claims rest on the author's two 8 GB cards and a reference set of 15 cards that is not in the repository. {{Source\|handle=matstatman\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562128904007843850\|repo=https://github.com/matstatman/gpcprobe}}.		* The SKU-wide claims rest on the author's two 8 GB cards and a reference set of 15 cards that is not in the repository. {{Source\|handle=matstatman\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562128904007843850\|repo=https://github.com/matstatman/gpcprobe}}.
	* [[hbmmon]] ships a different copy of <code><nowiki>gpcprobe.c</nowiki></code> that adds a write call under the same <code><nowiki>/dev/gpcprobe</nowiki></code> name. The two modules are not interchangeable; load only the one the tool you run expects. {{Source\|handle=matstatman\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556758870565593288\|repo=https://github.com/matstatman/hbmmon}}.		* [[hbmmon]] ships a different copy of <code><nowiki>gpcprobe.c</nowiki></code> that adds a write call under the same <code><nowiki>/dev/gpcprobe</nowiki></code> name. The two modules are not interchangeable; load only the one the tool you run expects. {{Source\|handle=matstatman\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556758870565593288\|repo=https://github.com/matstatman/hbmmon}}.
			* '''All-defective readout.''' @matstatman posted a summary row for one card with GPC healthy 0 / disabled 8 / defective 8, FBP healthy 0 / disabled 12 / defective 12 and SM 0, every unit counted as both disabled and defective, with the comment "maybe its bedtime". Nothing in the thread says whether the card was dead or the decoder misread it. {{Status\|Reported}}<br />{{Source\|handle=matstatman\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1563724680555139123}}
	* The kernel module is GPL-2.0; the repository has no LICENSE file and the Python files carry no licence. {{Source\|handle=matstatman\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562128904007843850\|repo=https://github.com/matstatman/gpcprobe}}.		* The kernel module is GPL-2.0; the repository has no LICENSE file and the Python files carry no licence. {{Source\|handle=matstatman\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562128904007843850\|repo=https://github.com/matstatman/gpcprobe}}.

Gigabyte MZ32-AR0

ImportBot — Fri, 30 Oct 2026 10:02:12 GMT

Up to 14x 8 GB CMP 170HX on a Gigabyte MZ32-AR0, from Discord (zorg33, Miséricorde, impactic, segmond, _kanorin); sources: @zorg33, @_kanorin, @segmond, @impactic, @wakeupmbrc1

← Older revision		Revision as of 10:02, 30 October 2026
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	== What people report ==		== What people report ==
	* _kanorin asked about rev 1.0 / 3.0 and could not find Resizable BAR documentation. segmond has 8 GPUs (not CMPs) on a rev 1 with no problems apart from slow POST and a broken SlimSAS PCIe slot; impactic has used a rev 1.1 for months with no issues. {{Source\|handle=_kanorin\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563012364435984455}}<br />{{Source\|handle=_kanorin\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563012638017978512}}<br />{{Source\|handle=segmond\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563053629970055191}}<br />{{Source\|handle=segmond\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563053910258622485}}<br />{{Source\|handle=impactic\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563055401396871259}}<br />{{Source\|handle=impactic\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563055488944578592}}		* _kanorin asked about rev 1.0 / 3.0 and could not find Resizable BAR documentation. segmond has 8 GPUs (not CMPs) on a rev 1 with no problems apart from slow POST and a broken SlimSAS PCIe slot; impactic has used a rev 1.1 for months with no issues. {{Source\|handle=_kanorin\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563012364435984455}}<br />{{Source\|handle=_kanorin\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563012638017978512}}<br />{{Source\|handle=segmond\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563053629970055191}}<br />{{Source\|handle=segmond\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563053910258622485}}<br />{{Source\|handle=impactic\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563055401396871259}}<br />{{Source\|handle=impactic\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563055488944578592}}
	* Miséricorde's price/performance pick for 4 cards: MZ32-AR0 (about 2300 RMB) plus a 48-core Rome such as the 7K62, about 450 to 650 USD for board and CPU, or 500 to 550 USD on Taobao~~; elsewhere~~ the board ~~alone can be~~ about 2000 ~~USD~~. Rome with 48 cores still gives full 8-channel bandwidth and 128 lanes. {{Source\|handle=wakeupmbrc1\|date=2026-10-16\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1560648418433433662}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-16\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1560648485198495867}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561403720632369236}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561405829939200061}}		* Miséricorde's price/performance pick for 4 cards: MZ32-AR0 (about 2300 RMB) plus a 48-core Rome such as the 7K62, about 450 to 650 USD for board and CPU, or 500 to 550 USD on Taobao. On 2026-10-18 he compared the board at about 2000 RMB with 1700 RMB and up for an X99-E WS class PLX board, and called buying EPYC the easier route. Rome with 48 cores still gives full 8-channel bandwidth and 128 lanes. {{Source\|handle=wakeupmbrc1\|date=2026-10-16\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1560648418433433662}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-16\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1560648485198495867}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561403720632369236}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561405710301134941}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561405807231242320}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561405829939200061}}
	* The board splits one PCIe x16 into SAS connectors. {{Source\|handle=wakeupmbrc1\|date=2026-10-16\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1560650062474772653}}		* The board splits one PCIe x16 into SAS connectors. {{Source\|handle=wakeupmbrc1\|date=2026-10-16\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1560650062474772653}}

Gen2 link retrain

ImportBot — Fri, 30 Oct 2026 10:02:11 GMT

The PCIe Gen2 link enable that ships in cmpunlocker and the early-boot retrain hammer; x16 needs the capacitor mod; sources are cmpunlocker and the Discord Oct 2026.; sources: @_j3ns, @djpandaman, @rrickk420, @wakeupmbrc1, @robbbbbb7973; GitHub Consensus-Protocol/cmp170hx, amoghmunikote/cmpunlocker

← Older revision		Revision as of 10:02, 30 October 2026
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	Link '''speed''' (Gen1 to Gen2) and link '''width''' (x4 to x16) are separate problems. Gen2 is software; x16 width		Link '''speed''' (Gen1 to Gen2) and link '''width''' (x4 to x16) are separate problems. Gen2 is software; x16 width
	needs the hardware [[Cooling and power\|capacitor mod]] on lanes 4-15. Without the caps the maximum width is x4.		needs the hardware [[Cooling and power\|capacitor mod]] on lanes 4-15. Without the caps the maximum width is x4.
	{{Source\|djpandaman\|2026-10-16\|https://discord.com/channels/1518634379604136178/1518692084729511967/~~1560681653788217435~~}}		{{Source\|handle=djpandaman\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561021502739189892}}

	== How it works ==		== How it works ==

GLM 5.3 Flash on 4x 8 GB

ImportBot — Fri, 30 Oct 2026 10:02:09 GMT

Import: Morrowmake glm53-flash-cmp170hx-recipe 1.8.0 (repo) plus Discord reports by cibernox, turbine, Mountains, ikyo, 1a2b3c0967, Impactic, peter643, Con3po, Miséricorde and Ivan's lab notes; gap-fill from #general 2026-10-23 to 10-25: @wakeupmbrc1 (claim, not reproduced), @jjb01957

← Older revision		Revision as of 10:02, 30 October 2026
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	* PixelML's Club CMP 170HX (four cards behind two PLX switches on a Broadwell host, release 1.6.0): 396.0 tok/s structured for one user and 798.6 at eight users at 180 W with P2P off, matching Morrowmake's own EPYC P2P-off figures (394.0 / 797.9); 418.0 / 816.5 after equalising HBM clocks, at 150 W. {{Source\|handle=c133\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1562161732137386127\|repo=https://github.com/PixelML/club-170hx}}		* PixelML's Club CMP 170HX (four cards behind two PLX switches on a Broadwell host, release 1.6.0): 396.0 tok/s structured for one user and 798.6 at eight users at 180 W with P2P off, matching Morrowmake's own EPYC P2P-off figures (394.0 / 797.9); 418.0 / 816.5 after equalising HBM clocks, at 150 W. {{Source\|handle=c133\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1562161732137386127\|repo=https://github.com/PixelML/club-170hx}}
	* Ivan (8-card box, two TP4 instances of this recipe, abliterated W4A16 + MTP checkpoint in place of canada-quant's, 1,024-token answers, effort low, NCCL only): see the layout table below. {{Source\|handle=darkmaniac7\|date=2026-10-28\|note=lab notes}}		* Ivan (8-card box, two TP4 instances of this recipe, abliterated W4A16 + MTP checkpoint in place of canada-quant's, 1,024-token answers, effort low, NCCL only): see the layout table below. {{Source\|handle=darkmaniac7\|date=2026-10-28\|note=lab notes}}
			* {{Status\|Reported}} Miséricorde, a claim that has not been reproduced: four cards on Morrowmake's runtime reach 1,000+ tok/s at 8 concurrent and 350+ tok/s at one stream on code, with "some millions" of tokens of KV, and Morrowmake's published numbers are for stock cards at lower power limits. He posted no setup, power limit or log; the release figures above for code are 442.1 tok/s (1 user) and 835.0 (8 users) at 180 W. He also finds GLM 5.3 Flash about 2x less verbose than Qwen 3.8 27B and 2 to 3x faster on code. Summary of his posts; see [https://discord.com/channels/1518634379604136178/1518692084729511967/1563780170735816828 Discord]. {{Source\|handle=wakeupmbrc1\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563206459955609635}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563206518537457676}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563206538083041301}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563780086359003279}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563780170735816828}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563780191715856415}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563780259097092150}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563780268819619881}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563780320774586479}}

	== Layouts ==		== Layouts ==
Line 220:		Line 221:
	* Repo: [https://github.com/Morrowmake/glm53-flash-cmp170hx-recipe Morrowmake/glm53-flash-cmp170hx-recipe] (MIT), last commit 2026-10-26. Posted on Discord by OB88594, Mountains and jjb. {{Source\|handle=ob88594\|date=2026-10-06\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556898939234558013}}		* Repo: [https://github.com/Morrowmake/glm53-flash-cmp170hx-recipe Morrowmake/glm53-flash-cmp170hx-recipe] (MIT), last commit 2026-10-26. Posted on Discord by OB88594, Mountains and jjb. {{Source\|handle=ob88594\|date=2026-10-06\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556898939234558013}}
	* Model: [https://huggingface.co/zai-org/GLM-5.3-Flash zai-org/GLM-5.3-Flash] (MIT); vendor notes in [https://github.com/zai-org/GLM-5 zai-org/GLM-5].		* Model: [https://huggingface.co/zai-org/GLM-5.3-Flash zai-org/GLM-5.3-Flash] (MIT); vendor notes in [https://github.com/zai-org/GLM-5 zai-org/GLM-5].
			* jjb's pointers for this stack (2026-10-23): the recipe, the fork's [https://github.com/Morrowmake/vllm-cmp170hx/tree/ampere-glm53 ampere-glm53 branch], [https://github.com/wtdcode/vllm-backport wtdcode/vllm-backport] as an alternative or backport reference, and the existing [https://huggingface.co/wtdcode/GLM-5.3-Flash-AWQ-W4A16 wtdcode/GLM-5.3-Flash-AWQ-W4A16] checkpoint. The 1.8.0 release on this page pins the <code><nowiki>ampere</nowiki></code> branch and canada-quant's checkpoint instead. {{Source\|handle=jjb01957\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563303837937176596\|repo=https://github.com/Morrowmake/glm53-flash-cmp170hx-recipe}}
	* Ivan's lab notes, 2026-10-27 and 2026-10-28.		* Ivan's lab notes, 2026-10-27 and 2026-10-28.

	{{ImportFooter}}		{{ImportFooter}}
	[[Category:8 GB]]		[[Category:8 GB]]

Full SM unlock

ImportBot — Fri, 30 Oct 2026 10:02:08 GMT

Enabling SM compute cores: 74 on both cards from cmpunlocker, up to 128 on the 10 GB card after the RIR burn; the 8 GB card is blocked. Discord Oct 2026. Gap-fill from #general 2026-10-22 to 10-26 (SM range 80 to 128, per-card masks), @xeax, @_orrorin, @ob88594, @tugoubxs, @djpandaman.

@@ Line 22: / Line 22: @@
 The extra TPCs beyond 74 are controlled by <code>OPT_TPC_DISABLE</code>, which is burned to 1 on the 8 GB card, and
 there is no free RIR to override it. {{Source|djpandaman|2026-10-10|https://discord.com/channels/1518634379604136178/1518695328008638516/1558532688158261441}}
-As of 2026-10-26 there is no public SM unlock beyond 70 + 4 for any 170HX except the 10 GB RIR path.
+On 2026-10-26 riko said there is "no pub unlock for add more SM for any cmp170 8-10g except 70+4 sm".
 {{Source|riko6253|2026-10-26|https://discord.com/channels/1518634379604136178/1518695328008638516/1564097261410189514}}
 == 10 GB: how far it goes ==
@@ Line 32: / Line 38: @@
 '''128 SM at full clock'''. {{Source|lxtend|2026-10-12|https://discord.com/channels/1518634379604136178/1518695328008638516/1559195004734541988}}
 {{Source|lxtend|2026-10-17|https://discord.com/channels/1518634379604136178/1518695328008638516/1560981128578338927}}
-Several owners (GhostInTheDatacenter, orrorin, Waypoint, Feralzi) reached 122-128 SM after the RIR burn, starting from
+On 2026-10-17 Feralzi reached 126 SM and Waypoint enabled every SM not marked defective (see [[10 GB card]]).
-hx-rir-tool and feeding the notes to an agent. {{Source|ghostinthedatacenter_87281|2026-10-26|https://discord.com/channels/1518634379604136178/1518695328008638516/1564100458023358584}}
+{{Source|handle=feralzi|date=2026-10-17|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1560903933323382805}}<br />
 == The silicon lottery ==
@@ Line 60: / Line 107: @@
 SM reached and reproduced by several 10 GB owners, so {{Status|Proven}} on the 10 GB card. The 8 GB card past 74 is
-{{Status|Contested}} / no public path. See the confirmation below.
+{{Status|Contested}} / no public path. See the confirmation below. How many SMs a given 10 GB card reaches is
 == Related ==

← Older revision		Revision as of 10:29, 30 October 2026
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	<includeonly><templatestyles src="Infobox/styles.css" />{{#if:{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|size}}\|{{#ifeq:{{lc:{{{compact\|}}}}}\|yes\|<span class="cmpw-download-compact">[[Media:{{{file\|{{PAGENAME}}}}}\|{{{file\|{{PAGENAME}}}}}]] <span class="cmpw-muted">({{#expr:{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|size}}/1048576 round 2}} MB, by @{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|uploader}}, [[:File:{{{file\|{{PAGENAME}}}}}\|details]])</span><br /><code>sha256 {{#cmpfile:{{{file\|{{PAGENAME}}}}}\|sha256}}</code></span>\|<div class="cmpw-download">		<includeonly><templatestyles src="Infobox/styles.css" />{{#if:{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|size}}\|{{#ifeq:{{lc:{{{compact\|}}}}}\|yes\|<span class="cmpw-download-compact">[[Media:{{{file\|{{PAGENAME}}}}}\|{{{file\|{{PAGENAME}}}}}]] <span class="cmpw-muted">({{#ifexpr:{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|size}} < 1048576\|{{#expr:{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|size}}/1024 round 1}} KB\|{{#expr:{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|size}}/1048576 round 2}} MB}}, by @{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|uploader}}, [[:File:{{{file\|{{PAGENAME}}}}}\|details]])</span><br /><code>sha256 {{#cmpfile:{{{file\|{{PAGENAME}}}}}\|sha256}}</code></span>\|<div class="cmpw-download">
	'''Download:''' [[Media:{{{file\|{{PAGENAME}}}}}\|{{{file\|{{PAGENAME}}}}}]] ({{#expr:{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|size}}/1048576 round 2}} MB)<br />		'''Download:''' [[Media:{{{file\|{{PAGENAME}}}}}\|{{{file\|{{PAGENAME}}}}}]] ({{#ifexpr:{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|size}} < 1048576\|{{#expr:{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|size}}/1024 round 1}} KB\|{{#expr:{{#cmpfile:{{{file\|{{PAGENAME}}}}}\|size}}/1048576 round 2}} MB}})<br />
	'''Version:''' {{{version\|<span class="cmpw-bad">not given</span>}}}<br />		'''Version:''' {{{version\|<span class="cmpw-bad">not given</span>}}}<br />
	'''Upstream source:''' {{#if:{{{source\|}}}\|{{{source}}}\|<span class="cmpw-bad">not given</span>}}<br />		'''Upstream source:''' {{#if:{{{source\|}}}\|{{{source}}}\|<span class="cmpw-bad">not given</span>}}<br />

← Older revision		Revision as of 10:12, 30 October 2026
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	\| 2026-10-01 \|\| eBay US, sold \|\| 8 GB \|\| 1,900 USD \|\| {{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1559075077528616961}}		\| 2026-10-01 \|\| eBay US, sold \|\| 8 GB \|\| 1,900 USD \|\| {{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1559075077528616961}}
	\|-		\|-
	\| 2026-10-04 \|\| Xianyu sellers, quote \|\| ~~8 GB~~ \|\| 1,800 to 1,900 USD ~~before duties and shipping~~ \|\| {{Source\|handle=voidgiraffe\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/~~1556258101596782593~~}}		\| 2026-10-04 \|\| Xianyu, one seller (wanted payment in USDT), quote \|\| not stated \|\| about 1,850 USD, not including import duties or shipping \|\| {{Source\|handle=voidgiraffe\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556207433670721597}}<br />{{Source\|handle=voidgiraffe\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556258101596782593}}
			\|-
			\| 2026-10-06 \|\| Xianyu, two sellers, quote \|\| not stated \|\| 1,800 to 1,900 USD \|\| {{Source\|handle=voidgiraffe\|date=2026-10-06\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556984655566340129}}
	\|-		\|-
	\| 2026-10-04 to 10-07 \|\| Alibaba, Ailfond (Alifond) \|\| 8 GB \|\| 2,400 USD, then 2,299 to 2,599, then 2,699 on 10-07; an order was cancelled at the increase \|\| {{Source\|handle=cute_sc2\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1556208333373972491}}<br />{{Source\|handle=lenxtroz\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1556236658322702348}}<br />{{Source\|handle=busulle\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1556512895150325863}}<br />{{Source\|handle=cibernox\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557431843601649738}}		\| 2026-10-04 to 10-07 \|\| Alibaba, Ailfond (Alifond) \|\| 8 GB \|\| 2,400 USD, then 2,299 to 2,599, then 2,699 on 10-07; an order was cancelled at the increase \|\| {{Source\|handle=cute_sc2\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1556208333373972491}}<br />{{Source\|handle=lenxtroz\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1556236658322702348}}<br />{{Source\|handle=busulle\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1556512895150325863}}<br />{{Source\|handle=cibernox\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1557431843601649738}}
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	* Most foreign-facing sellers are middlemen who buy on Xianyu and resell on eBay. {{Source\|handle=ob88594\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556307441422041149}}		* Most foreign-facing sellers are middlemen who buy on Xianyu and resell on eBay. {{Source\|handle=ob88594\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556307441422041149}}
	* {{Status\|Warning}} Buying agents such as Superbuy, and Goofish forwarding, have no GPU test bench. One buyer's CMP cards bought that way arrived dead. {{Source\|handle=kellertreppe123\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1563880995692740689}}<br />{{Source\|handle=kellertreppe123\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1563881100261072907}} For other goods they work well. {{Source\|handle=lia_oc\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559255557162930197}} Agents earn on the exchange rate and shipping; negotiate with the seller first and have the agent use that price. {{Source\|handle=spectakkular\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559253481574113341}}<br />{{Source\|handle=spectakkular\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559254307746877625}} @spectakkular's guess: agents negotiate a discount with the seller after you submit the order, before they place it (which is why placing takes them ages), and keep the spread. @djpandaman had a Taobao order from Bykski (fittings, pumps) discounted about 40 percent off the listed price once it was in the cart, and does not know whether Superbuy would have passed that discount on. {{Source\|handle=spectakkular\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559253569037795460}}<br />{{Source\|handle=spectakkular\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559253739326541905}}<br />{{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559253788798353580}} Superbuy adds 5 percent to the exchange rate in its estimates, and its cache shows old listing prices. {{Source\|handle=spectakkular\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1558747112710209577}}<br />{{Source\|handle=spectakkular\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1558747573596983328}}		* {{Status\|Warning}} Buying agents such as Superbuy, and Goofish forwarding, have no GPU test bench. One buyer's CMP cards bought that way arrived dead. {{Source\|handle=kellertreppe123\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1563880995692740689}}<br />{{Source\|handle=kellertreppe123\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1563881100261072907}} For other goods they work well. {{Source\|handle=lia_oc\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559255557162930197}} Agents earn on the exchange rate and shipping; negotiate with the seller first and have the agent use that price. {{Source\|handle=spectakkular\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559253481574113341}}<br />{{Source\|handle=spectakkular\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559254307746877625}} @spectakkular's guess: agents negotiate a discount with the seller after you submit the order, before they place it (which is why placing takes them ages), and keep the spread. @djpandaman had a Taobao order from Bykski (fittings, pumps) discounted about 40 percent off the listed price once it was in the cart, and does not know whether Superbuy would have passed that discount on. {{Source\|handle=spectakkular\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559253569037795460}}<br />{{Source\|handle=spectakkular\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559253739326541905}}<br />{{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559253788798353580}} Superbuy adds 5 percent to the exchange rate in its estimates, and its cache shows old listing prices. {{Source\|handle=spectakkular\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1558747112710209577}}<br />{{Source\|handle=spectakkular\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1558747573596983328}}
	* {{Status\|Theory}} A local tech agent in China who checks hardware before export, for about a 10 percent fee. At least one member uses one; nobody named one or reported results. {{Source\|handle=endsjeremy\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1563881270079913995}}<br />{{Source\|handle=endsjeremy\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1563882730356211813}}		* {{Status\|Theory}} A local tech agent in China who checks hardware before export, for about a 10 percent fee. At least one member uses one; nobody named one or reported results. {{Source\|handle=endsjeremy\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1563881270079913995}}<br />{{Source\|handle=endsjeremy\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1563882730356211813}} @djpandaman buys through an Alibaba agent and thinks its 10 percent fee is too high. {{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559254486164439092}}
	* In person: Huaqiangbei in Shenzhen is unlikely to have them openly. {{Source\|handle=_arcanum_\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1559917884858437663}}<br />{{Source\|handle=daveedcoles\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1560046244712161362}} @wakeupmbrc1 orders through Taobao or Goofish to Horgos and collects the cards there. {{Source\|handle=wakeupmbrc1\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1560814425298968637}}		* In person: Huaqiangbei in Shenzhen is unlikely to have them openly. {{Source\|handle=_arcanum_\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1559917884858437663}}<br />{{Source\|handle=daveedcoles\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1560046244712161362}} @wakeupmbrc1 orders through Taobao or Goofish to Horgos and collects the cards there. {{Source\|handle=wakeupmbrc1\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1560814425298968637}}
	* Buying on Xianyu directly avoids tariffs and is cheaper than AliExpress, but even a member with that access called it a hassle. {{Source\|handle=gnasherrr\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1564072211210309663}}<br />{{Source\|handle=gnasherrr\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1564072307398549616}}		* Buying on Xianyu directly avoids tariffs and is cheaper than AliExpress, but even a member with that access called it a hassle. {{Source\|handle=gnasherrr\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1564072211210309663}}<br />{{Source\|handle=gnasherrr\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1564072307398549616}}

← Older revision		Revision as of 10:02, 30 October 2026
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	\|}		\|}
	* The 8 GB card unlocks to 64 GB, 74 SMs and Gen2; the 10 GB card unlocks to 40 GB (48 GB with a good sixth stack) but gets 128 SMs, better interconnect and faster compute. Neither is strictly better: for LLMs memory matters most, for diffusion the 10 GB card is better. {{Source\|handle=wakeupmbrc1\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557273173173739585}}		* The 8 GB card unlocks to 64 GB, 74 SMs and Gen2; the 10 GB card unlocks to 40 GB (48 GB with a good sixth stack) but gets 128 SMs, better interconnect and faster compute. Neither is strictly better: for LLMs memory matters most, for diffusion the 10 GB card is better. {{Source\|handle=wakeupmbrc1\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557273173173739585}}
	* {{Status\|Proven}} The 8 GB card unlocks to 64 GB. Eight unlocked 8 GB cards in one dump all reported 65536 MiB, {{Source\|handle=newman_08462\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1558178969264848927}} and 64 GB is the maximum confirmed on a production 8 GB card. {{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/~~1559043975128682498~~}}		* {{Status\|Proven}} The 8 GB card unlocks to 64 GB. Eight unlocked 8 GB cards in one dump all reported 65536 MiB, {{Source\|handle=newman_08462\|date=2026-10-09\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1558178969264848927}} and 64 GB is the maximum confirmed on a production 8 GB card. {{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559044323545456671}}
	* {{Status\|Proven}} The 10 GB card unlocks to 40 GB, and most cards stop there. {{Source\|handle=zorg33\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557343927336697877}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557420925941710921}}<br />{{Source\|handle=programmerboi\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563753581637537904}}		* {{Status\|Proven}} The 10 GB card unlocks to 40 GB, and most cards stop there. {{Source\|handle=zorg33\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557343927336697877}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557420925941710921}}<br />{{Source\|handle=programmerboi\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1563753581637537904}}
	* {{Status\|Reported}} 48 GB needs a good sixth stack (a non-defective sixth FBP), about 1 card in 5: 6 of 30 cards mrpandagod saw tested could do it, {{Source\|handle=djpandaman\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1560920383782260797}} and the estimate on the Discord is 20% or less. {{Source\|handle=artistosu\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1564127408305479803}}		* {{Status\|Reported}} 48 GB needs a good sixth stack (a non-defective sixth FBP), about 1 card in 5: 6 of 30 cards mrpandagod saw tested could do it, {{Source\|handle=djpandaman\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1560920383782260797}} and the estimate on the Discord is 20% or less. {{Source\|handle=artistosu\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1564127408305479803}}
	* The RIR path is 10 GB only: its RIR rows are not blown, so a software fuse remask can be enabled. {{Source\|handle=wakeupmbrc1\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562401655239213067}} On 8 GB cards most fuses are burnt and locked out. {{Source\|handle=68x0\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1564103978130870484}}		* The RIR path is 10 GB only: its RIR rows are not blown, so a software fuse remask can be enabled. {{Source\|handle=lxtend\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562401359465029663}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562401655239213067}}<br />{{Source\|handle=lxtend\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562401595927433317}} On 8 GB cards most fuses are burnt and locked out. {{Source\|handle=68x0\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1564103978130870484}}
	* 10 GB unlocked cards land at 112, 122 or 128 SMs. {{Source\|handle=wakeupmbrc1\|date=2026-10-27\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1564684153704939573}}		* 10 GB unlocked cards land at 112, 122 or 128 SMs. {{Source\|handle=wakeupmbrc1\|date=2026-10-27\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1564684153704939573}}
	The full table with bandwidth, power and prices is on [[Variant comparison]].		The full table with bandwidth, power and prices is on [[Variant comparison]].
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	* '''Single-rank 8 GB cards.''' A community report describes 8 GB cards that stop at 32 GB after unlock (single-rank) next to the normal dual-rank 64 GB cards; three of four cards in that report were dual-rank. A faked 64 GB unlock on such a card passes <code><nowiki>memtest_vulkan</nowiki></code> but fails a CUDA memtest, so validate with a CUDA-side test. {{Source\|handle=c133\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1562161732137386127\|repo=https://github.com/PixelML/club-170hx}} Whether these are the same boards as the engineering samples above is not known.		* '''Single-rank 8 GB cards.''' A community report describes 8 GB cards that stop at 32 GB after unlock (single-rank) next to the normal dual-rank 64 GB cards; three of four cards in that report were dual-rank. A faked 64 GB unlock on such a card passes <code><nowiki>memtest_vulkan</nowiki></code> but fails a CUDA memtest, so validate with a CUDA-side test. {{Source\|handle=c133\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1528826330454429706/1562161732137386127\|repo=https://github.com/PixelML/club-170hx}} Whether these are the same boards as the engineering samples above is not known.
	* '''Fakes and transplants.''' The reported overall failure rate for bought cards is about 20%. Fake cards have been reported, and one "CMP" turned out to carry a die transplanted from a 32 GB A100. {{Source\|handle=civiloid\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559465371696898182}}		* '''Fakes and transplants.''' The reported overall failure rate for bought cards is about 20%. Fake cards have been reported, and one "CMP" turned out to carry a die transplanted from a 32 GB A100. {{Source\|handle=civiloid\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1559465371696898182}}
	* '''Other CMP cards.''' The CMP 90HX, 100-210 and the rest are different silicon. Do not confuse a 10 GB CMP 90HX with the 10 GB 170HX: an unlocked 90HX is 3090-class compute but keeps 10 GB of GDDR6X. {{Source\|handle=javicabrera_30495\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1561394694305353729}} A listing that says only "CMP 8GB" may not be a 170HX; check that it says 170HX. {{Source\|handle=djpandaman\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1558734002565816451}} This wiki covers the 170HX.		* '''Other CMP cards.''' The CMP 90HX, 100-210 and the rest are different silicon. Do not confuse a 10 GB CMP 90HX with the 10 GB 170HX: an unlocked 90HX is 3090-class compute but keeps 10 GB of GDDR6X. {{Source\|handle=javicabrera_30495\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1561394694305353729}} The Titan V is GV100 (Volta, like the V100), not GA100, so it is no relative of the 170HX; its mining counterpart is the CMP 100HX (100-210). This came up when comet1310 asked whether a Titan V can be unlocked to 16 GB. {{Source\|handle=c07f\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563459325278814231}}<br />{{Source\|handle=endsjeremy\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563499947305992254}}<br />{{Source\|handle=endsjeremy\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563499991899574377}}<br />{{Source\|handle=c07f\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563500918987685958}} Not every one of those can be modded: there are different revisions and you have to test; some have been unlocked, but at V100 prices it is not very lucrative (xeax). {{Source\|handle=xeax\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563517994955448361}}<br />{{Source\|handle=xeax\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563518185599148104}}<br />{{Source\|handle=xeax\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563518427652562955}} A listing that says only "CMP 8GB" may not be a 170HX; check that it says 170HX. {{Source\|handle=djpandaman\|date=2026-10-11\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1558734002565816451}} This wiki covers the 170HX.
	If you are buying, see [[Buying]] and test before you pay.		If you are buying, see [[Buying]] and test before you pay.

← Older revision		Revision as of 10:02, 30 October 2026
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	* Price: under $400 for the dual version on Taobao before shipping, list price 2,600 to 2,900 RMB {{Source\|handle=_arcanum_\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1556176261703925861}}; $250 per dual unit with a $100 Taobao coupon plus a Bykski discount, $500 for two shipped to Korea {{Source\|handle=artistosu\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1556178792190320735}}; formulamod and astralcooler.com add about $250 shipping to the USA {{Source\|handle=globalapathy\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1556154312827346985}}. Prices rose after the 170HX unlock. {{Source\|handle=artistosu\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1556180898037375077}}		* Price: under $400 for the dual version on Taobao before shipping, list price 2,600 to 2,900 RMB {{Source\|handle=_arcanum_\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1556176261703925861}}; $250 per dual unit with a $100 Taobao coupon plus a Bykski discount, $500 for two shipped to Korea {{Source\|handle=artistosu\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1556178792190320735}}; formulamod and astralcooler.com add about $250 shipping to the USA {{Source\|handle=globalapathy\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1556154312827346985}}. Prices rose after the 170HX unlock. {{Source\|handle=artistosu\|date=2026-10-04\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1556180898037375077}}
	* {{Status\|Reported}} The radiator in the TinyWhale AIO version is aluminium while the block is copper. {{Source\|handle=globalapathy\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1545982693903306813/1564381243691507803}} Mixing aluminium into a copper and brass loop invites galvanic corrosion; @_syn_thetic_ suggests a partial refund and a copper radiator. {{Source\|handle=_syn_thetic_\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562136996699443232}}		* {{Status\|Reported}} The radiator in the TinyWhale AIO version is aluminium while the block is copper. {{Source\|handle=globalapathy\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1545982693903306813/1564381243691507803}} Mixing aluminium into a copper and brass loop invites galvanic corrosion; @_syn_thetic_ suggests a partial refund and a copper radiator. {{Source\|handle=_syn_thetic_\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562136996699443232}}
			* {{Status\|Reported}} '''Cards sold already liquid-cooled.''' PJ (@zingy90210) bought CMP 170HX cards fitted with liquid coolers from a local seller in Sydney (photos posted); the seller can also do the water-cooling conversion for you. @danske1 had seen these coolers on eBay. @siriusrhi's objection: that style needs an AIO and a 240 mm radiator per card, so four cards means mounting four 240 mm radiators; he prefers a custom loop (see [[Chassis builds#Cases]]). Prices are on [[Buying#Prices as reported]]. Summary of their posts; see [https://discord.com/channels/1518634379604136178/1518692084729511967/1563805623613923389 Discord]. {{Source\|handle=zingy90210\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563805623613923389}}<br />{{Source\|handle=zingy90210\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563805642488152077}}<br />{{Source\|handle=danske1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563806011578523692}}<br />{{Source\|handle=siriusrhi\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563807579086258258}}<br />{{Source\|handle=zingy90210\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563815150807547915}}
	* An AIO-cooled card can run in a desktop with a riser cable or OCuLink from an M.2 slot, or with the radiator sitting outside the case. Check the PSU first. {{Source\|handle=robbbbbb7973\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561267848729591880}}<br />{{Source\|handle=globalapathy\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561275681499783230}}<br />{{Source\|handle=boz._.\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561341400308645929}}		* An AIO-cooled card can run in a desktop with a riser cable or OCuLink from an M.2 slot, or with the radiator sitting outside the case. Check the PSU first. {{Source\|handle=robbbbbb7973\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561267848729591880}}<br />{{Source\|handle=globalapathy\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561275681499783230}}<br />{{Source\|handle=boz._.\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561341400308645929}}

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	* {{Status\|Reported}} Under the IHS is paste, apparently a phase-change material, not the indium solder you would expect on a part like this. {{Source\|handle=wakeupmbrc1\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559272417338064979}}<br />{{Source\|handle=globalapathy\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559272646020038667}}<br />{{Source\|handle=gnasherrr\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561442200003416125}}<br />{{Source\|handle=xeax\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561497722685628417}} Old paste under the IHS is a large part of the thermal problem {{Source\|handle=xanthefin\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561336816873767023}}, which limits what a repaste on top can do {{Source\|handle=spectakkular\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559267967877910680}}.		* {{Status\|Reported}} Under the IHS is paste, apparently a phase-change material, not the indium solder you would expect on a part like this. {{Source\|handle=wakeupmbrc1\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559272417338064979}}<br />{{Source\|handle=globalapathy\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559272646020038667}}<br />{{Source\|handle=gnasherrr\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561442200003416125}}<br />{{Source\|handle=xeax\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561497722685628417}} Old paste under the IHS is a large part of the thermal problem {{Source\|handle=xanthefin\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561336816873767023}}, which limits what a repaste on top can do {{Source\|handle=spectakkular\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559267967877910680}}.
	* Cleaning tip: after alcohol and brushing, a strip of Kapton tape on the IHS pulled off the last layer of old paste residue. {{Source\|handle=_syn_thetic_\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562542992575959163}}		* Cleaning tip: after alcohol and brushing, a strip of Kapton tape on the IHS pulled off the last layer of old paste residue. {{Source\|handle=_syn_thetic_\|date=2026-10-21\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562542992575959163}}
	* {{Status\|Warning}} Delidding: there have been accidental delids {{Source\|handle=skirtchaser\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561497441117933568}}. The stock cooler cannot be used on the bare die without making up the IHS thickness or you cook the die, and it cannot be tightened further without damaging the VRM. {{Source\|handle=civiloid\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561522776815439892}} {{Status\|Theory}} @markshowa's idea: delid, solder a copper shim to the stock cooler and use PCM on the die, to run the HBM cooler and clock it higher; nobody knows the IHS thickness yet. {{Source\|handle=markshowa\|date=2026-10-19\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561758638236770393}}		* {{Status\|Warning}} Delidding: there have been accidental delids {{Source\|handle=skirtchaser\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561497441117933568}}. The stock cooler cannot be used on the bare die without making up the IHS thickness or you cook the die, and it cannot be tightened further without damaging the VRM. {{Source\|handle=civiloid\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561522776815439892}} {{Status\|Theory}} @markshowa's idea: delid, solder a copper shim to the stock cooler and use PCM on the die, to run the HBM cooler and clock it higher; nobody knows the IHS thickness yet. {{Source\|handle=markshowa\|date=2026-10-19\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1561758638236770393}} {{Status\|Theory}} On 2026-10-22 he added that the A100 80 GB PCIe (300 W TDP) has direct-die cooling, so a delidded 170HX with a ring like the A100 80 GB's should cool better by air or water. Counterpoint from @gnasherrr: heat transfer is almost never the bottleneck on a GPU because heat density is low, about 300 W over 826 mm², and that figure assumes the HBM gives off no heat. Nobody reported a delid attempt. {{Source\|handle=markshowa\|date=2026-10-22\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562957602529222782}}<br />{{Source\|handle=gnasherrr\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563039790440521850}}<br />{{Source\|handle=gnasherrr\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563040540658901013}}

	== Loops ==		== Loops ==
Line 90:		Line 91:
	* Radiators and pumps: a [https://www.titanrig.com/watercool-mo-ra-iv-400-radiator-4x200mm-and-fan-grill-bundle.html MO-RA IV 400] with 4x 200 mm fans is silent and runs on one D5; the MO-RA IV 600 needs two pumps; use Koolance quick disconnects for a detachable radiator. {{Source\|handle=zaknafar\|date=2026-10-10\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558498785535987713}} @wakeupmbrc1: a D5 is a poor pump for loops this size; use an Alphacool QX5, or two QX5 plus one or two D5. {{Source\|handle=wakeupmbrc1\|date=2026-10-10\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558501974066855948}} Also considered: the [https://www.titanrig.com/watercool-mo-ra-iv-600-radiator-9x200mm.html MO-RA IV 600] (9x 200 mm) and the [https://www.titanrig.com/alphacool-nexxxos-xt45-full-copper-1080mm-nova-radiator-9x120mm.html Alphacool NexXxoS XT45 1080 mm Nova] (9x 120 mm), all at TitanRig. {{Source\|handle=globalapathy\|date=2026-10-10\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558499117632589956}}		* Radiators and pumps: a [https://www.titanrig.com/watercool-mo-ra-iv-400-radiator-4x200mm-and-fan-grill-bundle.html MO-RA IV 400] with 4x 200 mm fans is silent and runs on one D5; the MO-RA IV 600 needs two pumps; use Koolance quick disconnects for a detachable radiator. {{Source\|handle=zaknafar\|date=2026-10-10\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558498785535987713}} @wakeupmbrc1: a D5 is a poor pump for loops this size; use an Alphacool QX5, or two QX5 plus one or two D5. {{Source\|handle=wakeupmbrc1\|date=2026-10-10\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558501974066855948}} Also considered: the [https://www.titanrig.com/watercool-mo-ra-iv-600-radiator-9x200mm.html MO-RA IV 600] (9x 200 mm) and the [https://www.titanrig.com/alphacool-nexxxos-xt45-full-copper-1080mm-nova-radiator-9x120mm.html Alphacool NexXxoS XT45 1080 mm Nova] (9x 120 mm), all at TitanRig. {{Source\|handle=globalapathy\|date=2026-10-10\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1558499117632589956}}
	* Aluminium blocks exist too: an [https://www.ebay.com/itm/336788356245 aluminium A100 block on eBay] at about $450 ("robbery" to @_syn_thetic_); @_arcanum_ runs an all-aluminium loop, fittings and quick disconnects included, so the metals never mix. {{Source\|handle=globalapathy\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562136036375531620}}<br />{{Source\|handle=_arcanum_\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562136502102663250}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562136765249093643}}		* Aluminium blocks exist too: an [https://www.ebay.com/itm/336788356245 aluminium A100 block on eBay] at about $450 ("robbery" to @_syn_thetic_); @_arcanum_ runs an all-aluminium loop, fittings and quick disconnects included, so the metals never mix. {{Source\|handle=globalapathy\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562136036375531620}}<br />{{Source\|handle=_arcanum_\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562136502102663250}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562136765249093643}}
			* {{Status\|Contested}} '''Pumps for many blocks.''' The 2026-10-25 debate, in the order posted:
			** @_syn_thetic_ (about 20 years of water-cooling): a D5 (about 4 m of head, 500 L/h) is the wrong pump for multi-GPU loops; it lacks pressure and flow, and DDC and QX5 tops are not enough either. His pump does 2,700 L/h with 28 m maximum head and 5 to 100 % PWM; at 40 % it gives much more flow and pressure than a D5 at lower cost, and it is silent. {{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563791192926199861}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563791233116147833}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563791311394447512}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563794131120164965}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563794271042150514}}
			** @wakeupmbrc1: these blocks usually drop under 0.7 psi each, so two DDC-type QX5 pumps in series are more than enough for 4 GPUs; add one or two D5s in parallel for more. Other solutions are louder. {{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563791421977264262}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563791663607062541}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563792191141449859}}
			** @_syn_thetic_: more than 4 cards in a series plus parallel loop is not ideal, and with the cards fed in parallel from a distribution block a D5 is too weak. {{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563791694451703848}}
			* @_syn_thetic_'s loop layout: 1/2 x 3/4 inch main trunks with compression fittings, 3/8 x 5/8 inch lines to the blocks, distribution fed from both channel sides (top block out, return the same way), and oversized ball valves in the right places instead of quick disconnects. {{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563794323504373780}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563794360531689554}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563794386687365152}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563794505818181703}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563794967602798626}}
			* Parts and prices: @wakeupmbrc1 points to the vendor Iceman, which sells full CNC brass and copper D5 dual tops (about 2 kg) for 600 RMB retail, and DDC and QX5 tops too. {{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563791048503988265}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563791124970213387}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563791160793894923}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563791269166190613}} @munisix guessed blocks at about 100 USD per card; @_syn_thetic_ answered that block prices are now far higher (see the table above). {{Source\|handle=munisix\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563790834892017808}}<br />{{Source\|handle=_syn_thetic_\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563790950541692939}}
	* About $350 buys a good GPU loop. {{Source\|handle=wakeupmbrc1\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1560809069151785035}}		* About $350 buys a good GPU loop. {{Source\|handle=wakeupmbrc1\|date=2026-10-17\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1560809069151785035}}
	* Chillers: insulate the tubing so room air does not heat the coolant and the chiller runs less, and keep the loop just above the dew point so nothing condenses. {{Source\|handle=gnasherrr\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1564183851717234689}} Do not bring cold winter air in for air-cooled cards either: condensation. {{Source\|handle=alanoo\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562111068204044420}}		* Chillers: insulate the tubing so room air does not heat the coolant and the chiller runs less, and keep the loop just above the dew point so nothing condenses. {{Source\|handle=gnasherrr\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1564183851717234689}} Do not bring cold winter air in for air-cooled cards either: condensation. {{Source\|handle=alanoo\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562111068204044420}}

← Older revision		Revision as of 10:02, 30 October 2026
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	\|-		\|-
	\| 300 W \|\| four cards on one 1,600 W PSU \|\| {{Source\|handle=okrasit.\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556772848041988238}}		\| 300 W \|\| four cards on one 1,600 W PSU \|\| {{Source\|handle=okrasit.\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1556772848041988238}}
			\|-
			\| 150 to 180 W, rarely above 200 W \|\| seven cards on a mining rack; an apartment breaker sets the ceiling, and above that the returns are minimal unless the cards are loaded all the time \|\| {{Source\|handle=munisix\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563786484912365689}}
			\|-
			\| 200 W \|\| four cards for inference are "perfectly fine if properly undervolted and tuned" \|\| {{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563783191725080629}}
	\|}		\|}
			* @wakeupmbrc1 holds that GA100 is much more energy efficient for inference than GB202 (the RTX PRO 6000) in memory bandwidth per watt. {{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563782960648429669}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563783041141313627}} @siriusrhi plans to start his cards at 200 W and go to 250 W once his wiring is fixed. {{Source\|handle=siriusrhi\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563785800515063959}}

	== Measured watts against throughput ==		== Measured watts against throughput ==
Line 156:		Line 161:
	* {{Status\|Reported}} After the SM unlock the 10 GB card is power bound. @djpandaman's card at 122 SMs hit the power cap and lost memory bandwidth even with the clock locked at 1,095 MHz; there was no difference between 108 and 122 SMs, and it capped even at 94 SMs. {{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559236914391949484}}<br />{{Source\|handle=emogop\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559239854842191903}}		* {{Status\|Reported}} After the SM unlock the 10 GB card is power bound. @djpandaman's card at 122 SMs hit the power cap and lost memory bandwidth even with the clock locked at 1,095 MHz; there was no difference between 108 and 122 SMs, and it capped even at 94 SMs. {{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559236914391949484}}<br />{{Source\|handle=emogop\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559239854842191903}}
	* The 10 GB VBIOS has no SM offset range (see above), so the usual undervolt does not apply. {{Source\|repo=https://github.com/vektorprime/170tune}}		* The 10 GB VBIOS has no SM offset range (see above), so the usual undervolt does not apply. {{Source\|repo=https://github.com/vektorprime/170tune}}
			* {{Status\|Contested}} '''Can a fully SM-unlocked 10 GB card be undervolted?''' The question came up after @djpandaman's 122-SM card spiked to about 400 W at a 250 W limit (see [[Power supplies and cabling#PSU sizing]]). In the order posted:
			** @djpandaman could not set the GPU clock by hand on that card the way he sets the memory clock, though he did not try hard, and presumes the SM clock is dynamic. {{Source\|handle=djpandaman\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563223577501769749}}
			** @wakeupmbrc1: set a GPU curve offset, so the card holds the same frequency at a lower voltage. {{Source\|handle=wakeupmbrc1\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563225977906270380}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563226038723547187}}
			** The 170tune fork reads the offset range of the 10 GB VBIOS 92.00.66.00.02 as [0..+0] (the bullet above). {{Source\|repo=https://github.com/vektorprime/170tune}}
			* Safe power limits for fully SM-unlocked cards are not known yet. {{Source\|handle=xeax\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563220557363814480}}
	* {{Status\|Contested}} What to do about it:		* {{Status\|Contested}} What to do about it:
	** @wakeupmbrc1: undervolting is necessary, and a shunt mod, better with the four unpopulated power phases soldered in (DrMOS, chokes, caps). {{Source\|handle=wakeupmbrc1\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559237006444204075}} Untested in the posts. {{Status\|Theory}}		** @wakeupmbrc1: undervolting is necessary, and a shunt mod, better with the four unpopulated power phases soldered in (DrMOS, chokes, caps). {{Source\|handle=wakeupmbrc1\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559237006444204075}} Untested in the posts. {{Status\|Theory}}

← Older revision		Revision as of 10:02, 30 October 2026
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	== Reported failing or needing a fix ==		== Reported failing or needing a fix ==
	* '''Kernel 7.2.11:''' Lycorascence (10 GB card, after an RIR burn) had cmpunlocker's link retraining break until he moved off 7.2.11 and rolled back the NVIDIA driver. He suspects a clash with Zagitta's <code><nowiki>gpu_unlock</nowiki></code> module, ~~which he also loads~~ for ~~RTX 3090s in the same box~~. {{Source\|handle=lycorascence\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1563134117753651281}}		* '''Kernel 7.2.11:''' Lycorascence (10 GB card, after an RIR burn) had cmpunlocker's link retraining break until he moved off 7.2.11 and rolled back the NVIDIA driver. He suspects a clash with Zagitta's <code><nowiki>gpu_unlock</nowiki></code> module, "possibly not aiming just for 3090 cards". {{Source\|handle=lycorascence\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1563134117753651281}}
	* '''Debian 13:''' on Debian 13.4 (kernel 6.12.113+deb13-amd64, nvidia-open 615.71.09, cmpunlocker <code><nowiki>2d10f89</nowiki></code>) the module build failed with <code><nowiki>fatal error: stdarg.h: No such file or directory</nowiki></code>. ViPiC fixed it in <code><nowiki>driver/build.sh</nowiki></code> by pointing the kernel source and build trees at separate paths (<code><nowiki>KSRC=/lib/modules/${KVER}/source</nowiki></code>, <code><nowiki>KSOUT=/lib/modules/${KVER}/build</nowiki></code>) and passing both to <code><nowiki>make</nowiki></code> as <code><nowiki>SYSSRC</nowiki></code> and <code><nowiki>SYSOUT</nowiki></code>. The Debian 13 CUDA apt repository offered 615.71.09, 610.57.04 and 610.43.02 but not 615.78.08 (2026-10-18). Summary of his write-up; see [https://discord.com/channels/1518634379604136178/1518692084729511967/1561427071157272727 Discord]. {{Source\|handle=vipic\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561427071157272727}}<br />{{Source\|handle=vipic\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561436105767788685}} clee maintains a fork of asm64-hooligan's cmpunlocker with a Debian build fix. {{Source\|handle=c133\|date=2026-10-22\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1562877452517384253}}		* '''Debian 13:''' on Debian 13.4 (kernel 6.12.113+deb13-amd64, nvidia-open 615.71.09, cmpunlocker <code><nowiki>2d10f89</nowiki></code>) the module build failed with <code><nowiki>fatal error: stdarg.h: No such file or directory</nowiki></code>. ViPiC fixed it in <code><nowiki>driver/build.sh</nowiki></code> by pointing the kernel source and build trees at separate paths (<code><nowiki>KSRC=/lib/modules/${KVER}/source</nowiki></code>, <code><nowiki>KSOUT=/lib/modules/${KVER}/build</nowiki></code>) and passing both to <code><nowiki>make</nowiki></code> as <code><nowiki>SYSSRC</nowiki></code> and <code><nowiki>SYSOUT</nowiki></code>. The Debian 13 CUDA apt repository offered 615.71.09, 610.57.04 and 610.43.02 but not 615.78.08 (2026-10-18). Summary of his write-up; see [https://discord.com/channels/1518634379604136178/1518692084729511967/1561427071157272727 Discord]. {{Source\|handle=vipic\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561427071157272727}}<br />{{Source\|handle=vipic\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561436105767788685}} clee maintains a fork of asm64-hooligan's cmpunlocker with a Debian build fix. {{Source\|handle=c133\|date=2026-10-22\|link=https://discord.com/channels/1518634379604136178/1534370835220004885/1562877452517384253}} dagb, coming from Gentoo, found installing the NVIDIA drivers on Debian much harder than expected. {{Source\|handle=da6b\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563288216155725827}}
	* '''Ubuntu 26.04, kernel 7.0.0-38-generic, stock 610.57.04:''' one new 10 GB card never initialized (<code><nowiki>kgspExtractVbiosFromRom_TU102: did not find valid ROM signature</nowiki></code>, VBIOS read as <code><nowiki>0xffff</nowiki></code>). That was a card fault (bad SPI flash suspected), not the OS: it failed on the stock driver too. {{Source\|handle=youngju10000\|date=2026-10-08\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557644692487671822}}<br />{{Source\|handle=ichundes\|date=2026-10-08\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557646290827870238}} See [[Card not detected or BAR allocation fails]].		* '''Ubuntu 26.04, kernel 7.0.0-38-generic, stock 610.57.04:''' one new 10 GB card never initialized (<code><nowiki>kgspExtractVbiosFromRom_TU102: did not find valid ROM signature</nowiki></code>, VBIOS read as <code><nowiki>0xffff</nowiki></code>). That was a card fault (bad SPI flash suspected), not the OS: it failed on the stock driver too. {{Source\|handle=youngju10000\|date=2026-10-08\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557644692487671822}}<br />{{Source\|handle=ichundes\|date=2026-10-08\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557646290827870238}} See [[Card not detected or BAR allocation fails]].
	* '''RIR tool access:''' the 170hx-rir-tool needs the kernel parameter <code><nowiki>iomem=relaxed</nowiki></code> to read anything, the cmpunlocker-patched driver (or a 610+ driver), and on some kernels the LTS kernel, where <code><nowiki>CONFIG_IO_DEVMEM_STRICT</nowiki></code> does not block it. {{Source\|handle=lycorascence\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562147741092806787}}<br />{{Source\|handle=lycorascence\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562150888146083964}}<br />{{Source\|handle=lycorascence\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1563135463106289716}}		* '''RIR tool access:''' the 170hx-rir-tool needs the kernel parameter <code><nowiki>iomem=relaxed</nowiki></code> to read anything, the cmpunlocker-patched driver (or a 610+ driver), and on some kernels the LTS kernel, where <code><nowiki>CONFIG_IO_DEVMEM_STRICT</nowiki></code> does not block it. {{Source\|handle=lycorascence\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562147741092806787}}<br />{{Source\|handle=lycorascence\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562150888146083964}}<br />{{Source\|handle=lycorascence\|date=2026-10-23\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1563135463106289716}}
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	* A stock DKMS copy under <code><nowiki>updates/dkms</nowiki></code> can shadow the patched module under <code><nowiki>updates/cmpunlocker</nowiki></code>; the card then shows 8 GiB. Fix: <code><nowiki>dkms remove nvidia/<version> --all</nowiki></code>, <code><nowiki>depmod -a</nowiki></code>, <code><nowiki>update-initramfs -u</nowiki></code>, check that <code><nowiki>modinfo -n nvidia</nowiki></code> points at the cmpunlocker module, then power off fully. {{Source\|handle=djpandaman\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563629622673936384\|repo=https://github.com/PixelML/club-170hx}}		* A stock DKMS copy under <code><nowiki>updates/dkms</nowiki></code> can shadow the patched module under <code><nowiki>updates/cmpunlocker</nowiki></code>; the card then shows 8 GiB. Fix: <code><nowiki>dkms remove nvidia/<version> --all</nowiki></code>, <code><nowiki>depmod -a</nowiki></code>, <code><nowiki>update-initramfs -u</nowiki></code>, check that <code><nowiki>modinfo -n nvidia</nowiki></code> points at the cmpunlocker module, then power off fully. {{Source\|handle=djpandaman\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563629622673936384\|repo=https://github.com/PixelML/club-170hx}}
	* Secure Boot must be disabled: <code><nowiki>mokutil --sb-state</nowiki></code> should report disabled; the patched module is self-signed at best. {{Source\|handle=logy0\|date=2026-10-10\|link=https://discord.com/channels/1518634379604136178/1540599965007478854/1558505023187714068\|repo=https://github.com/anoane/01-proxmox-dual-gpu-passthrough}}		* Secure Boot must be disabled: <code><nowiki>mokutil --sb-state</nowiki></code> should report disabled; the patched module is self-signed at best. {{Source\|handle=logy0\|date=2026-10-10\|link=https://discord.com/channels/1518634379604136178/1540599965007478854/1558505023187714068\|repo=https://github.com/anoane/01-proxmox-dual-gpu-passthrough}}
	* <code><nowiki>nvidia: module verification failed: signature and/or required key missing - tainting kernel</nowiki></code> in dmesg ~~is expected~~ with the patched module. {{Source\|handle=xanthefin\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561430238007664741}}<br />{{Source\|handle=xanthefin\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561431128420786197}}		* <code><nowiki>nvidia: module verification failed: signature and/or required key missing - tainting kernel</nowiki></code> in dmesg with the patched module: @matstatman called it harmless ("its alright"). @xanthefin first did not see the line in his own dmesg, then found it there too. {{Source\|handle=xanthefin\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561430238007664741}}<br />{{Source\|handle=matstatman\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561430441200717888}}<br />{{Source\|handle=xanthefin\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561431128420786197}}
	* A "no ECC support" line in dmesg from the <code><nowiki>ie31200</nowiki></code> EDAC driver is about the host memory controller, not the GPU. {{Source\|handle=mowgli8628\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561452253565685892}}<br />{{Source\|handle=matstatman\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561453038718165094}}		* A "no ECC support" line in dmesg from the <code><nowiki>ie31200</nowiki></code> EDAC driver is about the host memory controller, not the GPU. {{Source\|handle=mowgli8628\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561452253565685892}}<br />{{Source\|handle=matstatman\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561453038718165094}}

Line 70:		Line 70:
	* <code><nowiki>NVreg_RegistryDwords</nowiki></code> keys such as <code><nowiki>RmForceEnableGen2=1;RMPcieLinkSpeed=0x1</nowiki></code> are global and also force other NVIDIA cards in the host to Gen2. 68x only tested them on a CMP-only rig; ybryany left them off on his RTX 4080 Super desktop. {{Source\|handle=68x0\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1518695289278566450/1559704654743474310}}<br />{{Source\|handle=ybryany\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518695289278566450/1559748433353384017}}		* <code><nowiki>NVreg_RegistryDwords</nowiki></code> keys such as <code><nowiki>RmForceEnableGen2=1;RMPcieLinkSpeed=0x1</nowiki></code> are global and also force other NVIDIA cards in the host to Gen2. 68x only tested them on a CMP-only rig; ybryany left them off on his RTX 4080 Super desktop. {{Source\|handle=68x0\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1518695289278566450/1559704654743474310}}<br />{{Source\|handle=ybryany\|date=2026-10-14\|link=https://discord.com/channels/1518634379604136178/1518695289278566450/1559748433353384017}}
	* Zagitta's consumer tensor unlock (<code><nowiki>gpu-unlock</nowiki></code>) and cmpunlocker should coexist: the gpu-unlock module is driver-version agnostic, runs before the NVIDIA driver loads and is gated by PCI device ids; not yet tested by the person who asked. {{Status\|Theory}} {{Source\|handle=68x0\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1564290149368729613}}<br />{{Source\|handle=68x0\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1564291255465148520}}		* Zagitta's consumer tensor unlock (<code><nowiki>gpu-unlock</nowiki></code>) and cmpunlocker should coexist: the gpu-unlock module is driver-version agnostic, runs before the NVIDIA driver loads and is gated by PCI device ids; not yet tested by the person who asked. {{Status\|Theory}} {{Source\|handle=68x0\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1564290149368729613}}<br />{{Source\|handle=68x0\|date=2026-10-26\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1564291255465148520}}
			* '''One model across different GPU types.''' Asked whether vLLM runs on a mixture of GPUs, Mountains and Con3po said yes; Con3po has done it across a 3090 ("3090 xtx" as written), an AMD 395 system and a Blackwell 4000. No run of one model across CMP and V100 cards has been posted: ElectroHobo had both in one Dell R730 under Proxmox but in separate VMs, and thinks the only way is two VMs plus a framework that shards the model across machines. CMP plus RTX PRO 6000 in one vLLM job is on [[Engines#Mixing CMP and newer GPUs in one job]]; VMs on [[Virtual machines and passthrough]]. {{Source\|handle=segmond\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563735529890259015}}<br />{{Source\|handle=mountains1605\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563737440995516439}}<br />{{Source\|handle=con3po7016\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563737453909774557}}<br />{{Source\|handle=nathang6866\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1563727993896177735}}

	== Windows ==		== Windows ==

← Older revision		Revision as of 10:02, 30 October 2026
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	* '''Fuse:''' <code>OPT_NVLINK_DISABLE</code> reads <code>0x2</code> on the 10 GB probe; CUTE measured the connector		* '''Fuse:''' <code>OPT_NVLINK_DISABLE</code> reads <code>0x2</code> on the 10 GB probe; CUTE measured the connector
	pins on 8 cards (all populated, pins connected to the core) and believes NVLink is blocked by GPU fuses.		pins on 8 cards (all populated, pins connected to the core) and believes NVLink is blocked by GPU fuses.
	{{Source\|cute_sc2\|2026-10-05\|https://discord.com/channels/1518634379604136178/1534501623471145011/~~1556555596088746037~~}}		{{Source\|handle=cute_sc2\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1534501623471145011/1556562554719965275}}<br />
			{{Source\|handle=cute_sc2\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1534501623471145011/1556562874342572094}}
	* '''Missing microcode:''' GA100 has three on-die MINION microcontrollers for link training; the 170HX VBIOS lacks the		* '''Missing microcode:''' GA100 has three on-die MINION microcontrollers for link training; the 170HX VBIOS lacks the
	bootstrap image. The VBIOS is not cryptographically signed, so injecting the image is the plan, but it is not done.		bootstrap image. The VBIOS is not cryptographically signed, so injecting the image is the plan, but it is not done.
	* '''Missing board parts:''' someone counted 5 resistors present on the A100 PCB that are absent on the 170HX, plus 3		* '''Missing board parts:''' someone counted 5 resistors present on the A100 PCB that are absent on the 170HX, plus 3
	terminations; the expected failure mode of unterminated NVLink is inability to train.		terminations; the expected failure mode of unterminated NVLink is inability to train.
	{{Source\|_orrorin\|2026-10-12\|https://discord.com/channels/1518634379604136178/1518695328008638516/~~1559037159841988619~~}}		{{Source\|handle=_orrorin\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1559264615911923833}}
	The 3.3 V NVLink clock generator parts are also missing; kater found U11 (the bridge clock generator,		The 3.3 V NVLink clock generator parts are also missing; kater found U11 (the bridge clock generator,
	GS7612S5MA-R, on the back of the PCB near the IO shield) is unpopulated, so the bridge clock never comes up.		GS7612S5MA-R, on the back of the PCB near the IO shield) is unpopulated, so the bridge clock never comes up.
	{{Source\|ghostinthedatacenter_87281\|2026-10-22\|https://discord.com/channels/1518634379604136178/1518692084729511967/~~1562898774769274960~~}}		{{Source\|handle=onemillionkates\|date=2026-10-05\|link=https://discord.com/channels/1518634379604136178/1534501623471145011/1556788730717675702}}<br />
			{{Source\|handle=_arcanum_\|date=2026-10-07\|link=https://discord.com/channels/1518634379604136178/1534501623471145011/1557248811351539713}}<br />
			{{Source\|handle=ghostinthedatacenter_87281\|date=2026-10-22\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1562905010692558939}}

	== Status of the hardware mod ==		== Status of the hardware mod ==
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	to share though." GhostInTheDatacenter has about 75% of the NVLink circuit components and is waiting on 50 milliohm		to share though." GhostInTheDatacenter has about 75% of the NVLink circuit components and is waiting on 50 milliohm
	resistors plus parts to re-enable the power stages; if it works he will document a BOM.		resistors plus parts to re-enable the power stages; if it works he will document a BOM.
	{{Source\|bigptoughneigh\|2026-10-23\|https://discord.com/channels/1518634379604136178/1518695328008638516/1563312993414946827}}		{{Source\|bigptoughneigh\|2026-10-23\|https://discord.com/channels/1518634379604136178/1518695328008638516/1563312993414946827}}<br />
			{{Source\|handle=ghostinthedatacenter_87281\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1563603290145423391}}<br />
			{{Source\|handle=ghostinthedatacenter_87281\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1563706962703683687}}
			OB88594's advice for the missing parts: add the components that are missing and follow the A100 layout.
			{{Source\|handle=ob88594\|date=2026-10-24\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1563420061710950601}}
	mrpandagod is working on the software side after the RIR unlock and says it looks like it will work; he rewrote the SEC2		mrpandagod is working on the software side after the RIR unlock and says it looks like it will work; he rewrote the SEC2
	payload for NVLink during experiments. Nothing public as of 2026-10-28.		payload for NVLink during experiments. Nothing public as of 2026-10-28.
Line 40:		Line 47:
	A100-class PCIe cards use 3 bridge slots; each bridge carries 4 NVLinks (200 GB/s per bridge, 600 GB/s per pair), so an		A100-class PCIe cards use 3 bridge slots; each bridge carries 4 NVLinks (200 GB/s per bridge, 600 GB/s per pair), so an
	8-card rig would need 12 bridges. Compatible parts: PNY RTXA6000NVLINK-KIT (2-slot), PNY RTXA6000NVLINK3S-KIT (3-slot),		8-card rig would need 12 bridges. Compatible parts: PNY RTXA6000NVLINK-KIT (2-slot), PNY RTXA6000NVLINK3S-KIT (3-slot),
	NVIDIA 900-53651-0000-000. {{Source\|djpandaman\|2026-10-06\|https://discord.com/channels/1518634379604136178/1518692084729511967/~~1557060154409881651~~}}		NVIDIA 900-53651-0000-000. {{Source\|handle=djpandaman\|date=2026-10-06\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557070037209317407}}<br />
			{{Source\|handle=djpandaman\|date=2026-10-06\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1557074851594899527}}
	Chinese clone bridges are on Alibaba for about $200; a Taobao supplier quoted RMB780 unbranded / RMB900 NVIDIA for the		Chinese clone bridges are on Alibaba for about $200; a Taobao supplier quoted RMB780 unbranded / RMB900 NVIDIA for the
	dual-slot 900-53651-0000-000, bought via Superbuy; on xianyu about $120 each. US retail is 150+ USD plus tax.		dual-slot 900-53651-0000-000, bought via Superbuy; on xianyu about $120 each. US retail is 150+ USD plus tax.
Line 49:		Line 57:
	Miséricorde: NVLink would help only diffusion workloads and would need higher power limits, so it would not change much		Miséricorde: NVLink would help only diffusion workloads and would need higher power limits, so it would not change much
	for LLM inference; for GLM 5.3 Flash in TP4 it might add roughly 20-25%.		for LLM inference; for GLM 5.3 Flash in TP4 it might add roughly 20-25%.
	{{Source\|wakeupmbrc1\|2026-10-27\|https://discord.com/channels/1518634379604136178/1518692084729511967/~~1564684364896276554~~}}		{{Source\|handle=wakeupmbrc1\|date=2026-10-18\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1561400562036248677}}<br />
			{{Source\|handle=wakeupmbrc1\|date=2026-10-27\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1564684409029005334}}<br />
			{{Source\|handle=wakeupmbrc1\|date=2026-10-27\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1564684449642193021}}
	Pairs only (TP2) on A100-class PCIe; combining more than two cards over bridges is unresolved.		Pairs only (TP2) on A100-class PCIe; combining more than two cards over bridges is unresolved.

← Older revision		Revision as of 10:02, 30 October 2026
Line 24:		Line 24:
	remask) and the card must have a working 6th stack, which not all do; estimates put the chance around 20% or less.		remask) and the card must have a working 6th stack, which not all do; estimates put the chance around 20% or less.
	{{Source\|djpandaman\|2026-10-11\|https://discord.com/channels/1518634379604136178/1518692084729511967/1558942410724085843}}		{{Source\|djpandaman\|2026-10-11\|https://discord.com/channels/1518634379604136178/1518692084729511967/1558942410724085843}}
	{{Source\|artistosu\|2026-10-18\|https://discord.com/channels/1518634379604136178/1518695328008638516/~~1561898669966364697~~}}		{{Source\|artistosu\|2026-10-26\|https://discord.com/channels/1518634379604136178/1518695328008638516/1564127408305479803}}
	On most sampled cards the last stack is marked '''defective''', not merely disabled (bigfoot: all 6 of his; orrorin:		On most sampled cards the last stack is marked '''defective''', not merely disabled (bigfoot: all 6 of his; orrorin:
	both of his), and defective-marked stacks really are defective. A "pristine" card with the 6th stack only disabled		both of his), and defective-marked stacks really are defective. A "pristine" card with the 6th stack only disabled
	(gpcprobe <code>OPT_FBP_DISABLE 0x840</code>, all DEFECTIVE masks 0) is the one that can reach 48 GB.		(gpcprobe <code>OPT_FBP_DISABLE 0x840</code>, all DEFECTIVE masks 0) is the one that can reach 48 GB.
	{{Source\|bigfoot1144\|2026-10-19\|https://discord.com/channels/1518634379604136178/1518695328008638516/1561796223017681007}}		{{Source\|bigfoot1144\|2026-10-19\|https://discord.com/channels/1518634379604136178/1518695328008638516/1561796223017681007}}<br />
			{{Source\|handle=_orrorin\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562165405924069639}}

	== HBM vendor ==		== HBM vendor ==
Line 50:		Line 51:
	{{Source\|tekkenz\|2026-10-12\|https://discord.com/channels/1518634379604136178/1534370835220004885/1559048743947341955}}		{{Source\|tekkenz\|2026-10-12\|https://discord.com/channels/1518634379604136178/1534370835220004885/1559048743947341955}}
	Humvee55, a co-author of the paper that used a 10 GB card as the test vehicle, now believes the apparent extra capacity		Humvee55, a co-author of the paper that used a 10 GB card as the test vehicle, now believes the apparent extra capacity
	is '''aliasing in L2''', not real memory. {{Source\|scallion_9883\|2026-10-16\|https://discord.com/channels/1518634379604136178/1518692084729511967/~~1560782124049760389~~}}		is '''aliasing in L2''', not real memory. {{Source\|handle=scallion_9883\|date=2026-10-16\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1560782230777888841}}<br />
			{{Source\|handle=scallion_9883\|date=2026-10-16\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1560782273652195479}}
	A read-only fuse RE of a Samsung 10 GB card found the 80 GiB aperture (LMR <code>0x28B</code>) '''folds''' at about		A read-only fuse RE of a Samsung 10 GB card found the 80 GiB aperture (LMR <code>0x28B</code>) '''folds''' at about
	16 KB above the expected address (address folding confirmed die-side), i.e. the upper half is aliased, not addressable.		16 KB above the expected address (address folding confirmed die-side), i.e. the upper half is aliased, not addressable.
	{{Source\|ahnguyen17\|2026-10-03\|https://github.com/ahnguyen17/ga100-fuse-re}}		{{Source\|ahnguyen17\|2026-10-03\|https://github.com/ahnguyen17/ga100-fuse-re}}
	Stacks are physically 16 GB parts that Samsung binned; unlocking the upper half is "basically impossible" with the		Stacks are physically 16 GB parts that Samsung binned; unlocking the upper half is "basically impossible" with the
	information available, likely needing internal Samsung codes. {{Source\|djpandaman\|2026-10-11\|https://discord.com/channels/1518634379604136178/1518692084729511967/1559096192036642817}}		information available, likely needing internal Samsung codes. {{Source\|handle=djpandaman\|date=2026-10-12\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559096192036642817}}
			On 2026-10-20 Mountains put the current memory maximum for a 10 GB card at 48 GB, and bigfoot saw "no indication that
			80 or 96 gb is achievable", with 48 GB possible "if your last 2 stacks are lucky".
			{{Source\|handle=mountains1605\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1561898669966364697}}<br />
			{{Source\|handle=bigfoot1144\|date=2026-10-20\|link=https://discord.com/channels/1518634379604136178/1518695328008638516/1562173508094533753}}

	A Chinese write-up "170Hx 10G 解锁80G探索" (10G unlock to 80G exploration) is at blog.kkk.rs/archives/71; no one reported a		A Chinese write-up "170Hx 10G 解锁80G探索" (10G unlock to 80G exploration) is at blog.kkk.rs/archives/71; no one reported a
	stable 80 GB card from it. A screenshot claiming 130104 MB was debunked as two 64 GB-unlocked 8 GB cards reported		stable 80 GB card from it. A screenshot claiming 130104 MB was debunked as two 64 GB-unlocked 8 GB cards reported
	together (65024 MiB x 2). {{Source\|kio063218\|2026-10-15\|https://discord.com/channels/1518634379604136178/1534858283138158697/~~1560165388883468288~~}}		together (65024 MiB x 2). {{Source\|handle=kio063218\|date=2026-10-16\|link=https://discord.com/channels/1518634379604136178/1534858283138158697/1560618333542293526}}

	== How the state is reported ==		== How the state is reported ==