Computer freezes while playing games HELP

[MerkSoldier]

i have a problem here and i thought i could ask on here.. well when i play games my computer freezes and its only when i play games but i can play the game for an hour or 2 before it freezes.. there is no dirt or dust in the computer for it is brand new just built it a couple days ago.. and while playing battlefield 3 on max setting i am reaching temps of my CPU around 50 Celsius and my graphics card gets to around 30 Celsius.. and i have also ran virus scanners and has came back as no virus.. my specs are as fallows
I7 3930k
ASRock Z79 Extreme 4
120 gig OCZ SSD
2TB Hitachi HDD
130 gig as a back up
Kingston Predator HyperX 8 gig (2X4)
Extreme Gear 1000 watt power supply
Geforce GTX 660 3 gig
Asetek 510LC liquid cooling

 

[dingo07]

sounds like it might be a driver issue... contact the mfg of ur gpu and see if they can work it out with you on the phone

 

[Onus]

Test your RAM sticks individually using Memtest86+. More likely, however, your "1000W" PSU is a cheap generic unit that wanders out of spec under load. Does it have a little voltage switch on it?
A quality 500W unit would be sufficient for that system, such as anything built by Seasonic (their own, XFX, some Antec, high-end Corsair, some PC P&C), FSP (their own, some Antec), Delta (some Antec), Enermax/LEPA (their own), or Super Flower (new Rosewill, new Kingwin).

 

[swifty_morgan]

remove water cooling. put on stock cooler. play. what happens?

 

[J_E_D_70]

BF3 on higher setting should push your GPU well beyond 30C. 30C is idle.

 

[DiaSin]

I wouldnt trust an xtreme gear psu as far as I could throw it. They are the same cheap generic garbage that ibuypower uses in their prebuilt systems. The PSU may not have enough amperage, or steady enough amperage.

 

[Onus]

^Exactly. Cheap PSU-shaped objects is where these boutique builders typically shave cost.