Games lock up the computer

[Krackerjax]

Hello. I just made a new computer today and everything seems to run fine, but i see one problem.

When i open any game at all, the game locks my computer up. After around 1-2 minutes, no matter what im doing (playing or looking at the menu) it just freezes. I cant get out and i cant do ANYTHING. It just freezes and i have to turn it off the no-no way =(.

http://www.newegg.com/Product/Product.aspx?Item=N82E16813128409
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115213&cm_re=i7-870-_-19-115-213-_-Product
http://www.newegg.com/Product/Product.aspx?Item=N82E16820145260 8GB total
http://www.newegg.com/Product/Product.aspx?Item=N82E16814130550&cm_re=gtx_470-_-14-130-550-_-Product
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150314 for Physx

I have tried Left 4 Dead 2, Medal of Honor (didnt even make it past the menu), and Dead Rising 2.

Im not sure what is causing this exactly, so i just chose "graphics cards" to put it under.

 

[wa1]

Only happened on games, right?
Have you installed the right driver for your card?
Checked the card temps?

 

[simon12]

You need to try a few things possibly run Prime 95 to see if a heavy processor load causes it, try only 1 stick of RAM at a time, try only 1 graphics card at a time. It could also be driver related or the PSU is not strong enough.