PC won't boot with GPU installed.

[Ryan412]

I was gaming on my PC last night when out of nowhere it just shut down completely, the light on the motherboard never shut off so I know it didn't lose power, but when I went to turn it back on... nothing. I pressed the power button and nothing happened at all. I then opened the case and tried using the start button on the motherboard... same thing, nothing. Since this happened when I was gaming, I uninstalled the graphics card (Gigabyte GTX 780ti GHz Edition), and BOOM, it started up just fine. Could the problem be my Power Supply? It is a Corsair AX860. Or is it definately my Graphics card. I almost forgot to mention, and this might sound dumb that this isn't a clear give away to what the problem is, that this graphics card would make games crash occasionally, and I know it is the card and not something else in my PC because I had two GTX 760's in SLI before and nothing ever crashed when those were installed.

 

[toddybody]

Seems highly likely your card is contributing to some kind of issues. Do you have a spare card to swap, and test with?

I doubt it's your PSU, AX860 are solid supplies.