On 12/02/2015 09:37, fred wrote:

Any cures for a noisy CPU fan, apart from a replacement ?

If a quick clean a drop of WD40 doesn't fix it then replace ASAP.

Bearings are probably about to fail and a CPU with a stalled fan doesn't
last very long before it overheats. The chip dissipation has a power
density that is roughly the same as the tip of a soldering iron.

--
Regards,
Martin Brown