Computer reboots while playing games

coldzone

Honorable
May 30, 2013
2
0
10,510
My computer worked fine for about 3 months after I built it, but lately it has been randomly restarting while I'm in the middle of playing video games. It happens without warning and I don't get a BSOD or any other indicator. This usually happens between an 1 or 2 hours of playing. My CPU gets up to about 60 degrees so I'm not sure if it is an overheating problem or a PSU problem.

My specs are:
Intel Core i5 3470 @ 3.20GHz
NVIDIA GeForce GTX 660
8.00 GB Dual-Channel DDR3 @ 804MHz
ASUSTeK COMPUTER INC. P8Z77-V (LGA1155)
Rosewill Green Series RG630-S12 630W

Thank you in advance for any advice.