My computer keeps shutting down and then restarting please help!

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Hussam231
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Joined: 07/16/2010
Posts: 9

So, I got my custom computer a year ago, and I had this problem since I got it! I'm still searching for solutions!
My computer shuts down whenever I'm playing high performance games like GTA IV, Modern Warfare, Modern Warfare 2! (Modern Warfare doesn't last more than 2 minutes, others sometime lasts for long time sometime for a little!) And even one time it shutted down when I was using google earth, and there's time when it shutted off while watching a movie in fullscreen in MegaVideo.com . I have took it to the place I bought it from and they did so many test for RAM and CPU and tempos and they said everything is fine! I'ved tried replacing my stock video card cooler with the Accelero GTX Pro cooler and it didn't work out! So I put back my stock cooler... There's one time PC shutted while testing it with FurMark, it was 60 seconds test and just before 60 seconds it shutted.

I used XP Pro once, and Vista Ulimate once, and now I'm using Windows 7 Ultimate. (The problem was with all these OSs!)

Here's my PC specs:
CPU: Core 2 Quad Q9550. (No overclocking)
CPU cooler: Thermaltake Golden Orb II.
RAM: OCZ Reaper Edition 1600MHz DDR3 2x2GB. (No overclocking)
MotherBoard: Asus P5P43TD (DDR3). BTW I recently changed my MB. (And the problem is still there)
Power Supply: Thermaltake ToughPower 600watt.
Video Card: Zotac nVidia GTX 260 Synergy Edition.
HardDisk: Western Digital 500GB.
Optical Writer: LG LightScribe.
Case: ThermalTake SopranoRS 101, with an intake tube for the CPU on the left panel, an exhaust fan (120mm) on the back of the case and another exhaust fan (80mm) on the left panel.

These are pretty much the full specs. Any thing you'd like to know please reply and I'll answer.
I'd love it if you help me! and Rodney please if you read this post please help me out!
Thanks.

I have heatsinks on my motherboard chips! And when my Computer shuts it doesn't give me any warning or blue screen!

dustyschaffner
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Joined: 06/02/2009
Posts: 334

my friends 790XT has a little problem with the northbridge overheating and when it does, the computer will restart itself without warning, maybe this is whats happening to you, have you felt the heatsink on the NB?

Hussam231
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Joined: 07/16/2010
Posts: 9

if i have this problem, what is the solution

nilzxx
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Posts: 160

It does sound like a overheating problem, but it could also be something else. Try to run your games with the case opened and see if that still crashes. If you have a desk fan, point it at the opened case.

--complete specs-- Intel Quad Q6700 | Tt TMG i2 | 4GB Crucial Balistix Tracer PC6400 | 1TB Seagate Barracuda | 500GB Seagate Barracuda | XFX GeForce 9800GTX | Asus P5N-D | XION 600W PSU | DVD-RW 16x | DVD 16x | SABRENT TV Tuner | Saitek Cyborg Mouse 3200dpi | Cyba Snipa LED Mousepad | Logitech G15 Gaming keyboard | Aspire Blue X-Dreamer Case | VisionQuest 2ms 22" 19:10 LCD screen (1680x1050) | Logitech Z-5500 Surround Sound

Hussam231
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Joined: 07/16/2010
Posts: 9

i tried! i even put my room fan to blw air inside, sometimes it worked and others didn't!

DaveW71
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Joined: 06/08/2010
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One thing to check is the PSU. Is the fan running in it? Asking because I experienced this before.

Ratchet
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Joined: 10/08/2008
Posts: 159

What's the temperature of your CPU in the BIOS? Go and have a look once it restarts automatically. Also, since you stated the system restarts because you were watching videos in full screen and you have been onto Google Earth, post the temp of the video card.

Hussam231
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Joined: 07/16/2010
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My GPU at Idle is 55-60 C, when in load it reaches 90 C!
When I tested the 3dmark it hit 105 C!!! but didn't restart!

Ratchet
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Joined: 10/08/2008
Posts: 159

Do the following:

Check for dusts that may be clogging up your CPU cooler and the case air flow. If so, clean them out.

Or reapply thermal paste for the CPU.

As for the video card, double check that the cooler is seated properly, try to clean out as much dust as possible if necessary and make sure the card's air flow is adequate. Cause if not, there's the problem you've just explained.

Another best thing to do is to place your system in well, air-circulated area.