CPU fan keeps running at high speed

  clarkneil 12:00 06 Dec 2007
Locked

I have a problem with my cpu fan, it keeps running fast, some days it will be like it all the time the pc is running and sometimes it will run normally but only for a few minutes then it will back up to speed again. Any help would be very much appreciated.

  Confab 12:18 06 Dec 2007

Dust can make the fans really inefficient and therefore they have to run a lot faster and noisier in order to keep everything nice and cool. Have you tried cleaning the fans and checking all the air intake and outlet areas are clear?
I removed what can only be described as a “rug” from the air intake my PC just last week and now its as quiet as ever.

  clarkneil 12:23 06 Dec 2007

yes, even got the dust out from between the heatsink fins but still runs fast

  Confab 12:29 06 Dec 2007

Could be overheating - Have you checked the temperatures?

  clarkneil 12:32 06 Dec 2007

cant on my pc, at least i dont think you can.

  Quiet Life 13:05 06 Dec 2007

Try SpeedFan a free utility click here

  birdface 16:33 06 Dec 2007

Have you tried TaskManager.Under processes.CPU. system idle process should be showing about 97% if anything else showing a high % of the CPU let us know what.

  clarkneil 16:37 06 Dec 2007

thats running from 81 to 99%

  keef66 16:53 06 Dec 2007

run it for a while to get it warm, then restart it and go into bios / setup; somewhere in there it should show cpu temperature.

  clarkneil 17:45 06 Dec 2007

Cant get into the bios, since putting in Ati gfx card the start up screen is blank till i get to the desktop..

  keef66 21:57 06 Dec 2007

keep tapping the del key at startup

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