Computer restarts after 1-2 hours of gaming. Tried almost everything. Need ideas of whats going on.

[Chaker12]

Hi!
I've read like 400 forum posts with the same problem without finding the solutions.

My computer can run a game (CSGO) for about 1-2 hours then it restarts. No bluescreen. After that it can restart just by opening a new website on chrome.

Specs:
ASUS motherboard z87-A
GTX 970 strix
Intel i5 3.4 Ghz
16 gb ram Corsair
Fractal design 800w PSU
intel 128gb SSD


This is what ive tried:
Removed 1 ram at the time
Removed the GPU (used the built in one on the motherboard when I tried this)
Checked temps on HWmonitor all looks normal. 30-40 degrees on both GPU and CPU
Reinstalled windows 7 and formated the entire drive before that.
Check the volts on HWmonitor and it looks fine.
Ive done a Memtest over night with 0 errors.
Installed old and new drivers for everything.



Ive checked event viewer and it tells me nothing. Only that computer restarted faulty.

When I run a Furmark test it can sometimes run for hours until I press "space" and make the ring disapear then comeback then it restarts.

Hope someone has some clue of what is going on here.

Thank you very much

 

[DelJo63]

If there's a failure that forces restart, then the EVENTVWR will log it before the restart.
Look again for logs->system, scroll for errors

 

[Chaker12]

Thx for fast answer jobeard!

There is no errors before the error that says something like "system had an unexpected power off"

 

[Chaker12]

Im thinking its my mobo at this time. No way to be sure tho.

 

[DelJo63]

If it were software, there would be other log entries - - ergo must be hardware.

Check for

• overtemp,
  
• fans not running,
  
• power supply.

btw; any chance of short-term power outage? Off and back on almost immediately?
(I run UPSs for all my stuff, including the expensive HDtv precisely for that possibility).

 

[Tmagic650]

How much space is free on the boot SSD?