Starting about a couple of months ago, when I was playing Metal Gear Solid V, my computer would randomly restart, with no blue screen or anything, just turn off and turn back on. More recently however, this has begun to happen in all games, from Overwatch to Dota, so I decided to run OCCT. After letting the test run for about 10 minutes, it was working fine, but then I turned it off and then back on, which restarted the computer. I tried again, and it happened a second time. I've already used DDU and reinstalled everything, so any help would be appreciated.
Specs:
Intel Core i5-4670K
MSI Z87-G45 Gaming Motherboard
2x4 GB G.Skill Sniper Series 1886
MSI N660 GTX 660 2GB
CORSAIR HX Series HX750 Gold
Windows 10 64bit
Specs:
Intel Core i5-4670K
MSI Z87-G45 Gaming Motherboard
2x4 GB G.Skill Sniper Series 1886
MSI N660 GTX 660 2GB
CORSAIR HX Series HX750 Gold
Windows 10 64bit