Hi Panzer Leader. Try this:-
I'm going to assume that the CPU cooler came with the machine and is therefore right for the chip. If not GET A NEW ONE!
Step 1. Buy some Arctic Silver thermal compound.
You should be able to find an overclockers shop that sells it through Google.
If it's OK then detach it from the Socket carefully. Does it either the remains of a pad on it's underside or some white goo? If so get that crap offa there! and also from the processor core.
CAREFUL, don't scrape!!
Especially with a metal object as the heatsink will only be aluminium or copper.
Next lie something solid, flat and smooth on the bottom of the heatsink and hold it up to a lightsource. Can you see any light between the two? If you can, you will need to do some gentle smoothing/filling with the finest tool/paper you have.
Once that is flat and smooth you can replace it. I know this is a `no brainer` but make sure that the `step` on the heatsink matches the socket. Put a bead of the Arctic Silver on the chip processor core and replace the cooler.
When clipping the cooler on only apply pressure to the clip as leaning on the cooler to make it fit has been known to crush the core on Athlons!!
I've seen CPU temps dramatically reduced through these simple steps without the need to buy noisy and expensive `super coolers`.
Sorry for the lecture; Hope this helps.
Dworkin