you have a click which could be from many a part and a squeeky fan. maybe the click is from the squeeky fan. could be kind of :
squeek squeek click squeek squeek click or
click squeek click squeek click click squeek :)
you would have to have a look and put a ear to it, maybe something to do with bearing on fan or something but we cannot guess a noise.
ste
November 2009