Hashcat 1080(s) gpu error
#1
I have a 5x 1080 build.

2x psu

Sometimes (please note sometimes as if i restart the rig there is times where they will all run fine) when running hashcat I get this error :

nvmlInit(): GPU is lost

NvAPI_GPU_GetBusId(): NVAPI_ERROR

NvAPI_GPU_GetBusId(): NVAPI_ERROR

NvAPI_GPU_GetBusId(): NVAPI_ERROR

NvAPI_GPU_GetBusId(): NVAPI_ERROR

NvAPI_GPU_GetBusId(): NVAPI_ERROR

NvAPI_GPU_GetBusId(): NVAPI_ERROR

and either 1 or 2 of my gpus will be no longer run.

Help?
#2
Could be a power issue. Have you audited real-world power draw from the wall for each PSU under various workloads? How is the power balanced across the board and GPUs?
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#3
Right, so I have a 1000w psu which support the mobo and 3 cards.

Then another 800w psu which is for the other 2 1080s.

As far as seeing power usage from the wall, I have not done any checking.
#4
Hmm - that seems like enough headroom to me, on each power supply. With ~180W max per 1080 that's only 540W plus 460W for your mainboard, which seems like plenty.

Only other thing I can think of: If you move the GPUs around, does the problem follow the slots, or the GPUs?

Either way, looks less likely to be a problem with hashcat directly, and more a problem of system stability at load.
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#5
Classic symptom of bad risers.
#6
https://www.amazon.com/6-Pack-PCI-E-Powe...gpu+risers

These are the risers I have, I plugged 2nd PSU into a new outlet, at first all 5 were working then after a couple session 5th one dropped off again with the same error.

Is it these risers are bad? Are they installed poorly? Or?
#7
With those style risers, the issue is usually with the USB cable. You need really good, high-quality USB cables with those risers. Another common issue is the little x1 card not seated properly in the slot, especially if it's a x4, x8, or x16 slot.
#8
What do you recommend?
#9
Yikes, now this error has occurred :

clEnqueueWriteBuffer(): CL_OUT_OF_RESOURCES

clEnqueueWriteBuffer(): CL_OUT_OF_RESOURCES

clEnqueueWriteBuffer(): CL_OUT_OF_RESOURCES

clEnqueueWriteBuffer(): CL_OUT_OF_RESOURCES

clEnqueueWriteBuffer(): CL_OUT_OF_RESOURCES
#10
Try the timeout patch: https://hashcat.net/wiki/doku.php?id=timeout_patch