Question Multiple gpu’s failing in build

Sep 21, 2021
Hey guys, so I have a pc I built a few years ago that ran perfect until a couple months ago. Screen started going black with no way to recover, and it became more frequent, then permanent. I tracked it down to the gpu since if I removed the Gpu the computer ran perfect minus graphics. I replaced the gpu with another identical gpu. About a month later the exact same problem happened. I think it’s unlikely both gpu’s failed the exact same way so quickly, especially since from what I’ve found it’s not at all a known problem. My guess is there might be a psu failure but I’m not sure how to test it. I also dont want to buy new parts just to find out it’s the mother board or somehow software related. Any one have any idea how to diagnose or fix this problem? Thanks

system specs: gpu Gigabyte geforce gtx 1070 ti 8G

Cpu i7-8700k

Psu Evga supernova 650 g3

Motherboard Msi z370 sli plus 8th gen


Win 10 Master
No way to test Motherboards.
What you do is test everything else first and then once its all been showns to work fine, you have to assume.
Or you take PC to a repair shop and ask them to check it for you.

PSU can be checked but best way is a multi meter and unless you have one of those, a PC repair shop is best choicee
Other less reliable ways are:
the paper clip method -
or in the BIOS to check the +3.3V, +5V, and +12V. -

I would be more inclined to think it was PSU over mb. But I wouldn't guess.
Reactions: Jwal2127