Games freezing and crashing.

Flig

Distinguished
Mar 3, 2011
5
0
18,510
My system specs are
i5 2500k at 4.5
GTX 570
8 gigs ram
750w PSU

Some games, Just Cause 2 and Crysis, have been freezing up and giving me diagonal artifacts then crashing a second or two later. Nothing is overheating, processor runs at ~55c and graphics ~60c. Oddly it's only those two games so far, BF:BC2, Mafia II, and wow all run just fun no problems. If anyone has any idea what it is I'd love some advice.
 

Flig

Distinguished
Mar 3, 2011
5
0
18,510
I've dropped down to 4.2 and even upped the voltage on my stock clocked gpu a few steps to see if I can avoid these crashes to no avail. The only difference this time is that my screen just went gray and my whole computer froze up.