Originally Posted by Shocky
I never noticed any before the flash but I never played Civ V , the artifacts are very specific to Civ V and for some reason the catherine diplomacy screen, random flashes kind of like memory artifacts, yet eveything else seems fine, it's weird as I can play Crysis, Metro 2033 and let the Heaven benchmark loop endlessly and I get no artifacts.
Could try flashing back to the stock bios just to rule it out as the possible cause, but I don't how just unlocking voltage and fanspeed and cause it.
I don't have that game Shocky, so I can't test myself, but a quick google on "Civ V artifacting" shows this a pretty common issue. It might just be that game. I'm at work atm so don't really have time for an in depth search, but it may just be the game.