Computer Randomly Shuts Down Please Help!

MtnDrew

Honorable
May 13, 2013
24
0
10,510
Hello everyone,

When I am in a more intensive game like Battlefield 3, Bioshock Infinite, Metro Last Light and Arma 2/3 without any warning my computer will randomly shut down. I have not done any overclocking and my average temps are:
GPU: 49c
Motherboard: 69c
CPU: 57c

It is not like every time I play a game my computer shuts down, it's just every now and then which is really annoying. I suspect that it is my motherboard because it is a very bad motherboard that came with my computer. Anyway if anyone has a solution or could help me in any way it would be greatly appreciated.

Specs:
Motherboard: ASRock N68-VS3 FX
CPU: AMD FX(tm)-6100 Six-Core Processor
Ram: 8GB
GPU: GTX 660
HDD: 1TB
Power Supply: AZZA Alpha 700W
Case: NZXT Guardian 921 RB Gaming Case