On Thursday 16 April 2009 01:30:56 Paul Hartman wrote: > The fan on top of my case randomly starts vibrating and makes the most > awful buzzing noise. If I touch the case in a certain spot it goes > away (until I remove my finger). :) I usually just give it a couple > whacks and it stops... but that's probably not a good course to take > with a hard drive. :)
That's dirt in the bearings causing tiny wear patterns that just happen to vibrate at a resonant frequency to buzz. When it gets bad enough they wobble on the drive shaft and shake. Same principle as squeeking disc brakes. Solution is a new fan. Cleaning with aerosol lubricant products temporarily helps. -- alan dot mckinnon at gmail dot com
