I can run games like Battlefield 3 on max with no problems. I run battlefield 3, witcher 2, mass effect 3, metro 2033, gta iv and no problem but skyrim hard reset my pc...Now with the underclock i finished the game with 160 hours and lvl 73 and no problem no hard reset at all what are your gpu clocks???? Not sure, it's a Radeon HD 6780.