Maximum PC

hi i recently put together a computer and once everything was in it posted and start up was fine.So as i was getting WoW downloaded the blue screen appeared and i had to restart my computer. After the restart everything i had previously downloaded was fine except the pending wow download. I then continued to try and download it and got a little further in this time and same thing happens. Thinking it was the game or something i tried to download bf3 and same thing once again. At this point i just start looking for solutions online and it randomly blue screened again.The blue screen are completely random from what i can tell i can usually sit on the computer for about 30min without a blue screen and then maybe 6 min to 40 min later it will happen again. Any assistance will help . just ask if any more information is needed.

Note:all of these are brand new and have not clocked over 4 hours on any parts.
System specs
Gtx 660
12gb RAM (2x4) (2x2)
FX-6100
990fXA-GD80
1tb hdd
750w psu