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5 minutes after I turn on my PC the onboard graphics card is usually over 80° celsius and then crashes (random colors on screen, only way to get out is to just plug out the pc).

  • I haven't installed any new drivers or added/changed hardware recently
  • Everything went fine until yesterday

What should I do next? Do I have to buy a new mainboard right now?

There is no fan on the onboard graphics card, only a heatsink.

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closed as too localized by Sathya May 3 '11 at 4:57

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3 Answers 3

The first thing I would try is to add a fan, bigger heat sink, and make sure your case is ventilated well. Check for dust and lint build up. The next would be to add a heatsink with a fan. Those are the cheapest option. If you have a free graphics slot on your motherboard, you could disable the onboard graphics card and use a new on installed in your free slot. Your mainboard is probably fine, and if you have been otherwise happy with it, I would keep it and just install a new graphics card.

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I have a similar issue but I have both a graphics card and onboard graphics in hybrid SLI. Graphics card runs at normal temps but onboard graphics keeps getting hotter going past ~100 C. Nothing seems to fix it. –  Wesley Feb 27 '10 at 22:10

If this start of happening all of a sudden, you may want to reapply some thermal paste like ArcticSilver

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AND you can get a new heatsink, a premium one like Zalman. –  Shiki Jun 4 '10 at 17:19

If your graphics cards are over 2 years old, go into your case and give everything with fins or a fan a thorough blast of compressed air. Those dust bunnies are to components, what parkas are for arctic explorers. Dust bunnies = heat.

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