Freezing Computer

[patsfan02832]

So I built a new computer and as the title suggests, it freezes.  But only when i'm playing any sort of game.  I ran netflix for something like 5 hours with no problem.  But I've played 3 different games and after about an hour in, the computer freezes.  The computer specs are as follows:

MOTHERBOARD:
Asus Z87-C
CPU TYPE:
Intel® Core™ i5-4670 CPU @ 3.40GHz
SYSTEM MEMORY:
17.11 GB
VIDEO CARD MODEL:
NVIDIA GeForce GTX 660
VIDEO CARD MEMORY:
4.29 GB
POWER SUPPLY:
850W

Any suggestions and/or help are greatly appreciated.

[camerongray]

Run a program like HWMonitor (url]http://www.cpuid.com/softwares/hwmonitor.html[/url]) to check the temperature of your CPU and video card when running a game. Start HWMonitor, run the game for a short time (Not long enough for it to freeze) then go back and post the maximum temperatures reached.

Also, what make/model of power supply are you using?

[patsfan02832]

Downloading the program now.  The power supply is a SolidGear 850W

[patsfan02832]

Ran Civ5.  Max CPU temp was 120F (49C) and Video Card was up to 131F (55C).  Motherboard and Hard drive temps never went above 80F