Recently my PC has been randomly restarting. Sometimes it just restarts automatically, other times it just sort of dies, leaving a black screen. Nothing I can do seems to be able to restore it other than manually shutting the system down with the power button and restarting.
I'm by no means an expert, but I've been doing some of my own diagnostics. Firstly I tried testing all the voltages on the PSU, they were all within range, so I don't think that's the problem. Then I tried taking the GPU out (and using the HDMI out of the motherboard instead). This seems to have stopped the random restarts, however I want to be certain that it is in fact the GPU before I bin it and buy a new one.
I don't know enough about hardware to be certain it isn't maybe something to do with the motherboard (or maybe even something else?) causing these issues. Is there some way it could instead be the motherboard output to the PCI slot that's the problem?
GPU: Nvidia GTX 960
mobo: Asus Z97-AR