Mining PC failed last night, cannot see any of its GPUs.

[Paycheck]

One of my mining PCs is a Gigabyte Z170X-UD3 motherboard.  I have it running 7 EVGA 1060 3GB GPUs.  A Corsair 850 powers the board and 3 GPUs, an HP server PSU and breakout board handles the other 4 GPUs.  Running Windows 8 64 bit and Nvidia 390.77 drivers.  Video to the monitor has always been supplied by the on-board video.

This PC has run nearly flawlessly for over 3 months.  But last night, it shit itself.  I got up this morning to everything idling, and after a brief inspection, no GPUs are being shown.  Multiple restarts, disconnecting and reconnecting the GPU USB extension cables, a system restore, and uninstalling the drivers shows no GPUs.  When trying to reinstall the 390.77 drivers, it fails, it says it can't detect any compatible hardware.

What do you think?  Something on the board broke?  I tried clearing the CMOS with the battery out, but same problem.

[SpceGhst]

Did it happen to run a Windows update last night?  Seems to be a lot of problems lately caused by updates.

[Suslived]

Like what the previous poster said, did your OS auto-update?

Nevertheless, I would recommend disconnecting all GPUs and then plugging one in directly to the motherboard (without riser). Make sure you connect your video input to your GPU. If that doesn't work then i would simply reinstall windows entirely.

[swogerino]

Just get your seeds from your wallets if you have them installed in that computer first. Second try one by one each graphic card in the x16 PCIE slot and see if they work, if they do, the only option left is a complete reinstall of Windows.

This time though make sure to disable updates in services.msc after you have made your mining computer to work again. And this time use a friendly mining OS from Windows which as far as I know the only Windows 10 Professional is friendly for mining.

[platzdubble]

Windows will sometimes replace the GPU drivers with registered drivers and that can cause this problem. Here is a link on preventing it in the future: https://support.microsoft.com/en-us/help/3073930/how-to-temporarily-prevent-a-driver-update-from-reinstalling-in-window

In the meantime, why not get your CPU working for you (you could miner Nerva, which is a CPU solo-mined only coin). Just a thought. Hope you get this all ironed out!

[gsarducci]

Well, he did say he's running Windows 8, which I don't think ninja-updates like Windows 10 does. If he meant Windows 10 then yeah, I'll put my money on a ninja-update porking the drivers, requiring a DDU/reinstall fix.

OP, did you really mean Windows 8? First step is to blow out your drivers and reinstall the latest one. Pull all but one of your cards off the board. If one comes up, keep adding them until you're either done or it doesn't work. That at least starts narrowing it down.

That all cards suddenly just went away is almost universally an OS/driver/software problem.

[Paycheck]

It is 8 Pro 64 bit.  I'll look at it tomorrow evening and see what I can do with it.  It wasn't letting me complete the 390.77 driver reinstall, saying there were no GPUs for it.

[bebekangsoo]

It is 8 Pro 64 bit.  I'll look at it tomorrow evening and see what I can do with it.  It wasn't letting me complete the 390.77 driver reinstall, saying there were no GPUs for it.

same problem like me, try using latest nvidia driver 391.xx maybe can fix your problem

[leonix007]

It is 8 Pro 64 bit.  I'll look at it tomorrow evening and see what I can do with it.  It wasn't letting me complete the 390.77 driver reinstall, saying there were no GPUs for it.

You cannot install those drivers as long as your GPU's aren't detected

If I were you, Focus on your hardware, as why those GPU's are not detected by your system

have you tried the suggested above?

I would recommend disconnecting all GPUs and then plugging one in directly to the motherboard (without riser). Make sure you connect your video input to your GPU.

[nongkrong]

I think that's happen after you update your windows. And some update make crash with your gpu driver. But this condition sometimes happen.
But before we assume that, have you try to put all GPU to other mb or tray gpu without riser. Because i am worry if it turns out your mb is damaged.

[adaseb]

I think that's happen after you update your windows. And some update make crash with your gpu driver. But this condition sometimes happen.
But before we assume that, have you try to put all GPU to other mb or tray gpu without riser. Because i am worry if it turns out your mb is damaged.

No this is definitely not it because he wasn't running Windows 10.

Windows 10 is the one that forces upgrades and also messes with GPU drivers.
If you are under Win7 or Win 8, you won't get this issue.

Something is messed up with his Windows installation.
I think he will need to reformat and install from scratch everything.

If the MOBO was dead then there would be no POST. If the PCIe lanes were fried, then it wouldn't even start up windows.

[EthanB]

I haven't seen anybody suggest trying the cards on another machine (apologies if I missed it), so I'm going to ask if you have the capability to do this? Try plugging the cards, one by one, into another board. See if they are able to work in another system, because it's entirely possible that something goofy happened and anything from the GPUs to the Mobo could be malfunctioning. You need to isolate the issue, do you have any other GPUs you know to be working that you can test within the Gigabyte Z170X-UD3 motherboard?

Are you able to get any video from the cards? GPUs come with a low resolution output that is standard and native. It'll show your BIOS, safe-mode, all that good stuff.

[Paycheck]

Correction, it is 8.1 not 8.

I took 3 of the 1060 GPUs out and put them into my other mining PC.  They fired right up and are running fine in Nicehash.

I'll probably just wipe-n-reload Windows, that's almost surely faster than screwing around trying to figure out some obscure problem.