I have asked this countless times at other places but no one seems to be able to help me. I bought an msi gtx 780 a few months ago and didnt have any problems for like a month or so. Now however, whenever I play a game, my pc completely shuts off. Its been doing it with AC4 and last night I was playing the Everquest Next alpha and after about 4 hours of play, it shut off. I restarted and while the game was loading it shut off again. I tried again just now and it shut off while loading again.
I have a feeling it is my psu but I am not sure (I've never had or heard of anything like this).
My specs are
intel i5 2500k
msi gtx 780
psu cyberpower (It listed 600 and 700w on the psu)