Known bad combinations - Revision history

ImportBot: 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

2026-10-30T10:02:14Z

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}}
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	\| 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
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	\| {{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

ImportBot: 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; sources: @drew_2, @zagitta, @catchyuser, @.henrykrinkle, @mrmannyatx, @mowgli8628, @trustinter, @rh3dai, @ybryany, @68x0, @lycorascence, @xeax (+43 more); GitHub Consensus-Protocol/cmp170hx, GNmac-lab/deepseek-v41-flash-1017-cmp170hx, Johnnydaboy/cmpunl

2026-10-30T08:46:01Z

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; sources: @drew_2, @zagitta, @catchyuser, @.henrykrinkle, @mrmannyatx, @mowgli8628, @trustinter, @rh3dai, @ybryany, @68x0, @lycorascence, @xeax (+43 more); GitHub Consensus-Protocol/cmp170hx, GNmac-lab/deepseek-v41-flash-1017-cmp170hx, Johnnydaboy/cmpunl

← Older revision		Revision as of 08:46, 30 October 2026
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	\| {{Source\|handle=darkmaniac7\|date=2026-09-12\|note=lab notes}}<br />{{Source\|repo=https://github.com/bayley/cmpunlocker}}		\| {{Source\|handle=darkmaniac7\|date=2026-09-12\|note=lab notes}}<br />{{Source\|repo=https://github.com/bayley/cmpunlocker}}
	\|-		\|-
	\| PCIe 5 NVMe boot drive on a PCIe-to-M.2 sled with no heatsink, under DeepSeek Engram disk reads		\| Crucial T700 (PCIe 5 NVMe) boot drive on a PCIe-to-M.2 sled with no heatsink, under DeepSeek Engram disk reads
	\| The drive overheated and dropped off the bus; the host would not boot and the journal was lost		\| The drive overheated and dropped off the bus; the host would not boot and the journal was lost
	\| Heatsink and fan, a read-rate cap, models on a separate drive		\| Heatsink and fan, a read-rate cap, models on a separate drive
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	\| {{Source\|handle=_arcanum_\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559546208719077477}}<br />{{Source\|handle=boz._.\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559558065915830433}}<br />{{Source\|handle=douya4305\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559698008516337665}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559699750616571946}}		\| {{Source\|handle=_arcanum_\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559546208719077477}}<br />{{Source\|handle=boz._.\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559558065915830433}}<br />{{Source\|handle=douya4305\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559698008516337665}}<br />{{Source\|handle=wakeupmbrc1\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559699750616571946}}
	\|-		\|-
	\| A ~~cheap~~ "170HX 8GB" listing at a large ~~online store~~		\| A "170HX 8GB" listing at 9999 RMB from Taobao store shop35050154 (a large, well-rated retailer with many cards)
	\| ~~The small print said~~ the cards ~~were~~ PG199HX-origin (Tesla-derived), not 170HX		\| Another member identified the cards as PG199HX-origin (Tesla-derived), not 170HX: "that was the catch"
	\| Read the listing details; check board part and VBIOS before paying 170HX prices		\| Read the listing details; check board part and VBIOS before paying 170HX prices
	\| {{Status\|Warning}}		\| {{Status\|Warning}}
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	\| {{Source\|handle=bayley_w\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559439559153164409}}<br />{{Source\|handle=ob88594\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559444362893594626}}<br />{{Source\|handle=replacedriver47\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559469519016042608}}		\| {{Source\|handle=bayley_w\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559439559153164409}}<br />{{Source\|handle=ob88594\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559444362893594626}}<br />{{Source\|handle=replacedriver47\|date=2026-10-13\|link=https://discord.com/channels/1518634379604136178/1518692084729511967/1559469519016042608}}
	\|-		\|-
	\| ~~Cards~~ bought through purchasing ~~agents~~		\| CMP cards bought through the Superbuy purchasing agent (also via Goofish)
	\| ~~The agents cannot~~ test ~~GPUs~~, and cards bought that way arrived dead		\| Superbuy has no GPU test bench, and cards bought that way arrived dead
	\| Buy where the card can be tested or returned		\| Buy where the card can be tested or returned
	\| {{Status\|Warning}}		\| {{Status\|Warning}}
	\| {{Source\|handle=kellertreppe123\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/~~1563880995692740689~~}}		\| {{Source\|handle=kellertreppe123\|date=2026-10-25\|link=https://discord.com/channels/1518634379604136178/1528513735575081070/1563880584269398077}}
	\|-		\|-
	\| Used 10 GB cards		\| Used 10 GB cards

ImportBot: 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; sources: @drew_2, @zagitta, @catchyuser, @.henrykrinkle, @mrmannyatx, @mowgli8628, @trustinter, @rh3dai, @ybryany, @68x0, @lycorascence, @xeax (+43 more); GitHub Consensus-Protocol/cmp170hx, GNmac-lab/deepseek-v41-flash-1017-cmp170hx, Johnnydaboy/cmpunl

2026-10-30T08:17:21Z

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; sources: @drew_2, @zagitta, @catchyuser, @.henrykrinkle, @mrmannyatx, @mowgli8628, @trustinter, @rh3dai, @ybryany, @68x0, @lycorascence, @xeax (+43 more); GitHub Consensus-Protocol/cmp170hx, GNmac-lab/deepseek-v41-flash-1017-cmp170hx, Johnnydaboy/cmpunl

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