asked on 5/16/2011

PC fan running excessively

I've got a 3 year old Dell Optiplex 755 desktop PC which the fan is running excessively fast/high/noisey even though I've thoroughly sprayed out the dust from inside the PC case. What would cause this? Thanks.

PC Hardware

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canalicomputers

5/23/2011

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kn1564

5/16/2011

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lrpage

5/16/2011

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rindi

5/16/2011

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dbrunton

5/16/2011

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canalicomputers

5/23/2011

ASKER

I haven't tested the possible solutions above yet but all are very helpful, thanks!

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