Pc reboots while playing games

solid1

Reputable
Dec 15, 2015
2
0
4,510
Hello to everyone, I have a trouble with my pc, in the last month, it keeps rebooting when I'm playing a game, especially nba2k16, fallout 4 and CoD Black Ops 3. I tested the memory with memtest and it was ok, the graphics card with furmark, with no problem, and the proccessor with prime 95 and had no problem at all. My pc has:
Case: Coolermaster Cosmos SE
PSU: Thermaltake sp650M 650W
CPU: Amd Fx 8350
Mobo: Gigabyte 990fxa-ud3
Ram: 2x4gb Corsair Vengeance 1866Mhz
GPU: Radeon R9 280
SSd Corsair Force 3
hdd WD 2Tb Green

Also, I am playing on my tv, a 40'' Sony, cause my monitor died, until I get a new one.

I tried to play with lower settings but still had issues, in CoD when I changed the screen rendering setting from 80% to 50% or 100%, the game was playable. But in nba2k16 or Fallout 4, I couldn't find something relevant.
Any suggestions?
Thank you in advance

After a lot of effort I managed to reproduced the issue by running prime 95 and Furmurk at the same time. The pc reboots every time...
 
Solution
This is almost always a power supply issue, in some cases it could be heat related. I would run the stress test one at a time checking temperatures, then run memtest, from their I would be looking at the power supply.

solid1

Reputable
Dec 15, 2015
2
0
4,510
Thank you for your answer, I had run the test one at a time with no problem, and my temperatures were low, so I managed to get a friend's power supply and the pc worked fine, so my psu was either insufficient or defective...