the fan on my computer tower keeps getting really loud every ten minutes or so for about 15 - 20 seconds.

it did this when i first got the computer a few years ago but back then it did it maybe once a month

does anyone know what causes it or if theres a way to fix it?

i guess it might be the fact that its old and full of porn and struggling to process stuff
pink floyd are better than you
mine does that...sounds like its gonna take off
i think mine does it cos i had a more powerful power unit put in, and the standard fan cant cope with the extra heat produced....
try putting in a second fan, or, get a more powerful fan
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Which fan is it? The one in the PSU, a case fan or the one on top of your processor?
its probably just dirty and full of dust.
take a can of compressed air and use it to blow debris out of any ventilation holes, etc.
that should solve the problem
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You look at too much porn and have unfortunatley contracted an e-STD
erkk watch it with compressed air unless is specifically for computers it can contain static which will be a bad thing

More then likely the bearing in the fan has gone or is going, try a cheap £3 replacement. If it is dusty use a vacuum and just place it over the fan it should get rid of most of the crap
Quote by ChrisIsGawd
well there ya go
get rid of the porn

don't you EVER suggest that again!!!!
Get a can of compressed air and clean the dust out.

I let mine build up, and they had to change the grahics card because the fan was completely broken after a while.
I agree with the dust thing. My old one used to get pretty hot after it got filled with dust.
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well there ya go
get rid of the porn

*requests banning
pink floyd are better than you
Leave it on the clean channel next time.
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u want it to go into distortion? lol nah maybe it's really dusty. just last week i cleaned out my harddrive after 4 years and it was full of so much dust.
If cleaning it out doesn't work, then the bearings may be going bad. You might just need to put a new fan in there.