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I have two graphics cards in my system, both Nvidia Quadro 4000. One always works regardless, the other appears and disappears from device manager randomly and doesn't work for a while. An hour later of swapping the cards around, turn off and on the switch at the wall, it normally works again.
Both the cards work fine in my other computer. However, only one seems to work in this PC.
I have tried all combinations of PCI slots, PCI Power, different BIOS versions, forcing PCI Express 2.0 in the bios and even using another graphics card in place of the second Quadro, which still doesn't work, even on its own.
The motherboard has its additional power connector connected for multi GPU setups. I'm not using SLI as it’s not required, however I have tested them using a bridge and i get same issues.
Originally I was using ESXI PCU pass-through, but It’s much easier to diagnose these issues in windows.
I don't believe this is a driver error, as both windows and ESXI randomly stop seeing this card.
I think the PSU is okay, however I have not tested another one, I think that is my next step.
Other Specs:
- Intel i7 3770
- MSI Z77 Mpower Motherboard
- 600W OCZ PSU
mt025
Posted 2017-12-02T16:28:09.993
Reputation: 2 392
1One of the cards doesn't work on its own, so it sounds like that card is no longer reliable. You've done the same initial steps I would. Given that the card was released in 2010, it's probably out of warranty. Test another PSU. Also update the motherboard BIOS and reset its settings to defaults, just in case it's got some customized power or timing settings. – Christopher Hostage – 2017-12-07T17:51:54.973
Yeah I guess that even though the second card works in other machines, it clearly has an issue. Just very strange. I updated the BIOS and reset many times. However, ill try another one and see if it jumps into life after each BIOS reset. Thanks. – mt025 – 2017-12-07T17:56:13.663
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Normally I would say 600W is enough, and it is unclear what else you have installed, but i would expect this to be a actual case where the PSU is sagging. ( http://www.nvidia.com/content/quadro/pdf/quadro-power-guidelines.pdf ) Puts the 4000 series at about 125 watts each in addition to the PCIe provided power. Coupled with an older PSU, you might be starving them a little and one may be more sensitive to that. Try pulling the PSU from the known-working system to test..
– Yorik – 2017-12-07T18:09:16.410Yeah thats a good point. I also have 1 HDD, 4 SSD, 2 Optical – mt025 – 2017-12-07T18:10:27.753
1I had a failing single GPU in a system and it turned out to be an older PSU with tons of overhead. Having a second PSU to try will eliminate that possibility quickly. – Yorik – 2017-12-07T18:11:35.537
from my viewpoint that is clear indication of PSU overload. – tukan – 2017-12-14T08:13:58.157
Negative. PSU sagging will not removed a device from device manager until it has sagged enough to crash the computer. Required power draw to PCI-ID is insignificant and isn't related to the amount of power the card needs or throttling would not be a thing. If sagging was knocking out the card, the card would still be faulty. – user1901982 – 2017-12-14T15:47:22.573