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Possible Duplicate:
CPU Fan is Loud, but the Temperature is OK (I Think)

The problem I am facing is the CPU fan rotates with high speed even though the CPU usage is very low, less than 10%.

I even cleaned the Dust off the Fan, I replaced the Thermal Material on the Processor. Installed an Extra Fan.

Nothing seems to Work.

Please Help.

Community
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dhasu
  • 812

1 Answers1

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Some mainboards/BIOSes come with faulty ACPI tables that might cause the fan to turn on too early or too late. On older operating systems this sometimes wasn't so much of a problem but newer ones more closely honor the settings there and as a result might lead to what you describe. You might want to check whether a BIOS update solves the problem.

There are also power settings in your operating system which might prevent the CPU from entering a lower power state (for example if it's forced to always run at full clock speed). You may want to check there, too.

Joey
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