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I have a Windows 7 Acer Aspire x3475 with AMD Radeon HD 7000 + 7660D Dual Graphics (2343). When I play games, my computer freezes and the screen goes black. The only sound is a loud beep that does not stop when it freezes.

The AMD VISION Engine Control Centre shows that when I go into game - full screen or windowed mode - the Activity GPU watch and Memory watch skyrocket. When that happens, the temperature goes over 41 degrees (around 42-44° C), and the computer freezes. I have tried to decrease the MHz on the memory and GPU (as much as I can). It seems the PC works on low MHz, but after maybe 5-10 minutes the computer freezes again.

  • I have tried Furmark Stress Test, but my PC just freezes too fast, so I don't get any results.
  • I have dusted it.

What do I have to do?

share|improve this question
You underclocked your memory and GPU and you're wondering why the computer is freezing? – Moses Nov 22 '13 at 19:51
As Moses said, don't underclock your hardware. 40ºC is not hot for a computer at all. 50-60 is high, but even that is tolerable. Sounds like something is genuinely faulty, not a heat issue. How much RAM do you have? Can you swap it out so you're only running 1 stick at a time and make sure they're not corrupted. Try using memtest. – sab669 Nov 22 '13 at 20:40

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