So im overclocking my GA-EP45-UD3P with a e8500 inside of it. I get a great overclock run a bunch of different stress tests, everything passes. But randomly when i play games, HoN.... L4D2, CS, CSS, GRID, w/e.... the game screen will just go grey or black and freeze and die forcing me to restart. Or sometimes that screen will flicker. I have tried everything from changing my vcore from 1.3 to 1.45... im currently @ 9.5 x420 down from 440 thinking or hoping it would help. I have no idea what causes this =(( Any ideas? Oh im running a 5870 o/c 900/1300... ive tried defaults and it still does it =\ So im just keeping it o/c. Sometimes i could run for hours gaming and it wont freeze... and other times it will. Could it be my card? I dunno =(