im having this problem too i have the same motherboard with a thermal take toughpower psu 750 w kingston hyper x blu ram 4gb 1600 sapphire radeon hd 5770 1 gb ddr5 graphics card and since i built this ive had the random freezez and cannot figure out what is causing it ive tried a new hard dish becausei read a damaged dish could have caused it so i replace it with no changes it still freezez while gaming and while not gaming