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My laptop has been shutting down completely after around 10 or 15 minutes in a game. I've seen dozens of posts on multiple websites with the same problem, and everyone suggests that the laptop is overheating, so I downloaded CPUID HWMonitor and my temperatures seem to be fine during a game (mid 50 deg., maybe into low 60s).

My friend and I just yesterday took my laptop apart for the purpose of preventing overheating. We took the heatsink off and put fresh thermal paste on, as well as cleanig out all the dust. The laptop feels as though it is running much cooler to the touch.

We also did a clean windows 7 install, so the problem may be related to that instead. To me, it seems like the computer thinks it is overheating, even though it isn't, and shutting down, but I'm no expert by any means.

Thanks for any help. I'll post my specs below.

  • Toshiba Satellite A500
  • Windows 7 Professional, 64 bit
  • Intel Core 2 Duo T6500 2.1 GHz
  • 4 GB ram
  • ATI Mobility Radeon HD 4500 Series
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It is possible that the laptop's BIOS just turns off the CPU as a life-saving feature. Can you specify which game, because it might be related to it. Do the breaks occur in any other environment or application? –  Doktoro Reichard Sep 8 '13 at 17:17
    
I was playing League of Legends when it happened. I was idling in a game while I checked my temperatures for over 20 minutes without any problems, but when I actually starting playing the game my computer shut down after just a few minutes. Nothing else has caused problems so far, but all I've done other than this is watch a movie and browse the internet. –  Tyler M. Sep 8 '13 at 17:23
    
If you're idling then you won't push the graphics. Try to decrease your graphics quality / resolution and check if the problem persists. Also remember to use updated drivers. –  Doktoro Reichard Sep 8 '13 at 17:33
    
Does the hardware monitor show the temperature of the GPU? It may still be overheating without the rest of the computer becoming abnormally warm. –  MBraedley Sep 8 '13 at 17:38
1  
I think I have it working now. Took it apart again and the connection between the heatsink and the GPU was not very solid. Patched it up and it seems to be running pretty well now. Thanks for the help. –  Tyler M. Sep 8 '13 at 20:15

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