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Computer Randomly Restarts; No Error/BSOD

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August 29, 2013 10:52:56 AM

Hello everyone,

I'd like to apologize in advance if I posted this in the wrong section, but here goes:

I built a new computer about 4-5 months ago and it's recently been restarting randomly. There hasn't been a particular pattern to it, whether the system is under heavy load (gaming) or if I've just got Firefox open. I tried a refresh of Windows 8 and it seemed as if the restarts stopped for some time but it began several days after the refresh. Post-refresh, I did not install any applications other than Steam, Firefox, and Skype, though I am unsure if a windows update might have caused all this, as I have no way to systematically test for a software issue.

System Specs:
Windows 8 Pro (64bit)
Sabertooth 990FX R2.0 Motherboard
AMD FX-8350
Asus GTX 670 4gb
Corsair AX850 PSU
Caviar Black 1TB HDD
Kingston Hyper X 3k 120Gb SSD
Corsair Vengeance 8gb (2x4gb) 1600mhz

Any help in figuring this out would be GREATLY appreciated. As I said above, I have no way to systematically test for a software issue, but I haven't exactly ruled out a hardware issue either. The one thing I can say is that I haven't seen the system temperature rise particularly high under load or when non-stressed, so I doubt over-heating is a problem.

Thanks in advance,
Null
August 29, 2013 10:57:48 AM

WHat are the CPU/GPU temps under load?
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August 29, 2013 11:28:36 AM

Hi voices,

I've attempted to run any game I can, but the system as reached the point where it is restarting before it ever reaches a load point. Previously, the GPU would rest at around 20-30C when idling, and go up to 70 when under load. The CPU temp was around 18-23 though I think that may have been an inaccurate reading under core-temp. I am going to attempt to refresh my Windows 8 installation again, and see if the restarts stop.

After the refresh I will be turning off all updates, and hopefully I'll get some results.

- Null
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August 29, 2013 11:49:57 AM

Hey guys,

The refresh was completed, but shortly after, the computer restarted. No windows updates were installed, and the only thing
that was installed was Guild Wars 2 for the sake of putting the system under some stress. Also, I am unsure if it is simply some glitch, but both screens flashed for a moment,
then windows returned except with the background turned black, instead of it's usual picture.

-Null

Update: Managed to run furmark and stressed the video card until it hit about 75C. I'm not sure how good of a test that is in terms of PSU stress or video card stress, but I suppose if it is a good test, things have been narrowed down to memory/mobo/cpu? Does anyone have any thoughts/insight/help?
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