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GPU Overheating & computer crashes

post #1 of 22
Thread Starter 
Hi everyone, it's been a while since I last posted on overclock.net, last time, I was asking about my build and you guys were very quick and helpful. So here I go now:

A week back I had a problem with my computer, turns out my psu was overheating on account of a ton dust inside the box (not the case). This quickly cause the entiere computer to crash. Anyway, no big deal, I had the PSU changed, the rest of the computer didn't sustain any visible damage.

A few days back I got it back, cleaned out and with a new PSU. Initially, since I was using it to work, it worked great. But as soon as I started trying out a few offline games, like ME2 or PoP (very demanding) my computer crashed after a while (time changed from game to game, from 5 minutes to hours). So I started to look for the usual suspects, virus, malware, than overheating. Speedfan and SensorsView both register an IDLE temp of 46c for all cores and 55-60 on the GPU.

So I started looking around for dust or something, but turns out it's perfectly clean, no overuse of thermal glue (or whatever that is), no contacts or bad airflow. Fan are running as usally.

I tryed to test the power supply with occt, it took ( the test) about 40 seconds to crash the computer. I'm not sure what I should do, what do you guys think?

By the way I have a gf 8800 gts 512 mb as graphic card, processor: intel core 2 quad Q6700 cpu 2.66ghz, window 7 ultimate 32-bit, and a ATX+p4 500 watt psu.

Thanks in advance. If any more info or tests are needed to diagnostic please let me know.

-Jupitel
post #2 of 22
lets see your high / low temps while running 3d mark (or vantage) idle temps dont tell us too much

how is it you are crashing? bluescreen? hang? the more info the better
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post #3 of 22
If you psu is a cheap generic one it might not be enough to power your hardware. If I were you I would buy a quality 650w+ one. Ive got a 850w powercool PSU and its rocksolid, the voltages will only fluctuate by about 0.4% (acording to OCCT).

Thats the only potential probolem I can think of.
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post #4 of 22
500w cheap psu will hold that load.
50-60 idle wont say much. 8800 can withstand 90C. (My 9600gt idle is 60, load is 75) Show load temps. If it's BSOD check mini dumps. moAr info. Corrupted video drivers? Faulty/damaged gpu
Edited by DiNet - 7/1/10 at 6:40am
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post #5 of 22
Thread Starter 
Hi, thanks for the quick answers, ye idle temp do not say much, I'm downloading some tests and I will post the result, meawhile.

When the computer crashes it simply shuts down instantly. No reboot, no electricity, no errors, no blue screen, no quick graphic errors. I'm planning on buying a new PSU as soon as I rule out my 8800 gts as a problem. Strange thing is, while playing my cpu cores go max to 60, while the GPU simply keep rising.

And even stranger, sensorsview gave me a warning for a 156 c temp on gpu a few times, clearly a sensor mistake. So I was wondering, is it possible that the sensors are ****ed up and computer shuts down because he thinks it has too high temp?

Thanks for the answers
post #6 of 22
Quote:
Originally Posted by Jupitel View Post
Hi, thanks for the quick answers, ye idle temp do not say much, I'm downloading some tests and I will post the result, meawhile.

When the computer crashes it simply shuts down instantly. No reboot, no electricity, no errors, no blue screen, no quick graphic errors. I'm planning on buying a new PSU as soon as I rule out my 8800 gts as a problem. Strange thing is, while playing my cpu cores go max to 60, while the GPU simply keep rising.

And even stranger, sensorsview gave me a warning for a 156 c temp on gpu a few times, clearly a sensor mistake. So I was wondering, is it possible that the sensors are ****ed up and computer shuts down because he thinks it has too high temp?

Thanks for the answers
Yes it is possible. Not for the gpu though, just the cpu. Run 3d mark 06. If you crash(power off)on the boat/dragon scene, you don't have enough juice.
Edited by Newbie2009 - 7/1/10 at 7:01am
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post #7 of 22
Thread Starter 
Oh and I tryed going back to my old nvidia drivers, didn't help.
post #8 of 22
yes i think that is possible, however i dont know what you would do about that besides update your bios / gpu drivers
or backdate your gpu driver

**edit, sorry posted this while other posts went up, disregard lol
Edited by !ender_ - 7/1/10 at 7:03am
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post #9 of 22
Quote:
Originally Posted by Jupitel View Post
Oh and I tryed going back to my old nvidia drivers, didn't help.
It does not sound like a driver problem. It is more likely to be a faulty PSU, faulty wiring.
If your pc shuts off like you said, it is almost certainly because the components are not getting the power they require. Check, reseat the GPU. Use a different 6 pin connector if you have one handy.
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post #10 of 22
Thread Starter 
Is there a test for PSUs? I mean occt crashed the computer quickly. Still don't know if the problems lies with power of heat or both. Downlading benchmark, will give results as soon as I have them. Thank you again.
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