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System Crashes to Black Screen on all games and furmark after ~2min

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January 12, 2012 7:18:11 PM

I built my first computer roughly 7-8 months ago:

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OS - Windows 7 Home Premium 64bit

Case - Fractal Design R3
MoBo - Gigabyte GA-Z68X-UD3H-B3
CPU - Intel Core i7 2600k 3.4GHz (with Antec Kuhler 620)
GPU - Sapphire ATI Radeon HD6870 1GB
RAM - Corsair Vengeance 2x4GB DDR3-1600 CL9
HDD - Western Digital 1TB Caviar Black
PSU - Corsair HX650
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Never Overclocked.

All has been fantastic without a problem, up until about 3 weeks ago.

Computer has started to crash to a Black Screen on all games (Steam & Non-Steam) after a couple of minutes.
I also tried Furmark yesterday which gave me the same problem, roughly same amount of time. Temps seemed okay, GPU was around 68-70c right before crash.
Non-gaming use has no issues that I have discovered.

Games which have crashed are Dirt 3, Battlefield 3, Metro 2033, L4D2, GTAIV - everything I have tried playing.

What happens:
- Screen goes black: This happens during gameplay and in game main menus also.
- GPU fan speed burst: A moment after the screen blacks out the 6870 gives a very brief burst up to what sounds like full fan speed before returning to normal after about a second.
- Audio looping: The last sound will loop quickly (buzzing effect) until the computer is rebooted.
- Everything unresponsive: Only solution is to manually restart with reset button on case.

Things I have tried:
- Rolling back AMD Catalyst drivers from 11.12 > 11.11 and 11.10. (Using Safe Mode & Drive Sweeper - this gave me more problems)
- Reinstalling Windows and applying newest updates.

I am now led to believe this is a hardware issue... Power Supply or Graphics Card??? Correct me if I can try other Software related things.

I am quite new to all this so any help as to narrow down what the problem is would be greatly appreciated.

Thanks.
a b B Homebuilt system
January 12, 2012 7:20:28 PM

Most likely it's a power or a heat issue. What are your temps, first of all?
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January 12, 2012 8:41:03 PM

leave the side panel open to see if it last longer.
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January 13, 2012 6:53:44 PM

pat said:
leave the side panel open to see if it last longer.


Nah no difference, thanks.
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January 13, 2012 7:23:02 PM

Also just tried Windows Memory Diagnostic, no problems.
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June 26, 2012 6:45:15 AM

Did you ever find a solution for this? My 7970 just started doing ye exact same thing.... Except for the fan burst. Driving me nuts trying to figure it out!
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June 26, 2012 10:37:02 AM

take out the gpu and test it in a working rig.
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July 3, 2012 4:29:40 AM

Yea turned out it was faulty GPU, it was replaced.
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