Playing a spot of bf3 just now, all fine until about 15 minutes into a round. System just froze. No bsod, black screen etc. Hit ctrl/alt/del and closed the game. Just a bf3 has stopped responding error, no WHEA error in event viewer, just the message application hang error. Currently have the system at 4.5ghz, 36x125, auto voltage. Havent touched any other voltage settings either. Temps on gpu of 60c, 64c max on the cpu. So all well within limits.