In message , harryagain
writes

"fred" wrote in message
...
Any cures for a noisy CPU fan, apart from a replacement ?

I squirted WD40 in the crack between the fan hub and the motor base.
Fixed it, running OK now

Yikes!

The proper way is to remove the fan, peel off the 'spec' label at the
centre (hub?), prise out the rubber plug to reveal the bearing and the
end of the spindle, and add a single drop of oil.

If possible, power up the fan to encourage the oil to spread into the
bearing. Beware that, if you've over-oiled it, it will probably splatter
oil all over the place, so first wrap and an old cloth or some tissue
paper loosely around the fan.

If the oil in the bearing seems to have disappeared, you might chance a
second drop - but don't overdo it.

If all seems well, clean all traces of oil from the face of the hub,
insert the rubber plug (which will probably cause a little oil to be
exuded), re-clean the face of the hub, and re-stick the spec label. [If
the label has been damaged, cut some duct tape to the same size, and
stick that on first. This will prevent any oil seeping out.]

Again, power up the fan, and check that oil isn't being sprayed around
(if it is, you'll need to clean things up), then refit. With luck, it
will give you several further years of trouble-free service.



--
Ian