That is exactly why

cant do that

FSP 500W 1u

Still need help, I can play some lower end games that only use about 60% of GPU. I think it is just my 2 year old 500w power supply is finally pooping out.

3.3=3.296
5=5.0
12=12.232

Its only a 500w because i have an ITX build.

I have now got it to reboot while bench marking my GPU on Heaven benchmark, the temp for my 770 stays under 75 Celsius so i really think it is just a power issue. Please help!

Can switching back to windows 7 maybe resolve this?

It says that after the start up though, also it just started happening, it even happens when I'm not overclocking or if I am.

Whenever I am loading in to an intense game like for example Arma 3 servers my computer just black screens and turns off then automatically turns back on. I have tried changing everything to default...