CPU fan noises

[canadianboy]

I got a P3 700 slot 1 and the fan on it makes some annoying sound.
What causes that noise??

Thanks

 

[fast_eddie]

It is sometimes is a pre-warning to imminent failure of the fan. Other than 'annoying', what type of sound does the fan make?

 

[zzzz]

may be its coupling the vibrations to the case and the case is rattling. try to put something soft under the case feet.

 

[urbantechie]

The fan is prolly going bad.