Computer shuts down while playing PlanetSide 2? powersupply failure?

Ike_

Honorable
Nov 14, 2012
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10,630
Hey guys ive been thinking my GPU has been crashing for the last two days but I found out something new tonight: when my game crashes my WHOLE computer crashes everything just freezes and its like just the fans on the case are running. now I would say this is all on my powersupply ( which is an elcheapo 530watt to be exact the Raidmax hybrid 530watt ) but when I play BF3 I get a DirectX error so I think maybe its my GPU? ... my PC is completely fine for just everyday tasks however..... I dont think its overheating cause I monitor the temps and they seem normal (under 50c for CPU an somewhat same for GPU)

My question: What the heck is wrong! I just want to play the BF4 beta on tuesday I dont want to have to RMA my GPU :(

PC specs:
i5-3570k - Cooled by CM hyper 212 evo
8GB of ram
EVGA GTX 660 FTW sig2
ASRock Z77 pro3
CM HAF 912 case