My computer started just randomly restarting.

and by randomly I mean every 5 minutes. But if I leave it off for a while, I can usually get an hour or so out of it before it starts to restart.

Video card is out now, that thing is fucked, gotta return it.

I just got a new PSU, a Corsair 1kW PSU. So my comp started restarting again so I put the new on in. Also put my video card in hoping it was the PSU from the beginning.

No dice.

Video card is OUT AGAIN. Fuck that shit.

Also my computer still works after switching all the wires out and the PSU. So that is good.

Hopefully it will stop restarting. I am at about 10 mins right now...

EDIT: It was the power supply