Computer restarting when playing video games

[mikeval123]

I built this computer about 6 months ago. Everything runs fine I can surf the internet, listen to music, watch videos with no issues and it is left on almost 24 hours a day. There are no issues until I try to play a game then it will either restart immediately after launching the game of within 1 minute of playing time. The only time it works without issues is when i reset the CMOS. I don't think it is a overheating issue because I ran speedfan and nothing was running hot



ASUS Maximus IV Gene-Z/GEN3 LGA 1155
GIGABYTE GV-N560UD-1G GeForce GTX 560 Ti
CORSAIR HX Series HX750 750W ATX12V 2.3 / EPS12V 2.91
Intel Core i5-2500K
CORSAIR Vengeance 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600

 

[noreaster]

I had a similar problem and it turned out to be a bad power supply. Perhaps you can swap yours out with a friend's and see if that fixes it.
Best of luck.