On 14/3/09 02:32, "Wallace Adrian D'Alessio" <fluxstrin...@gmail.com> wrote:
> Overclockers who are set on defeating heat to preserve costly CPUs yet squeeze
> extreme clock counts out of them have been known to polish the CPU and
> heatsink with ever finer grades of wet or dry paper starting with 1000 grit.
> And even going to finer grits of polishing compound. Some may even " lap : the
> surfaces together with a polishing compound.
>
> Then they apply the thermal paste after all of that.
>
> In theory the more closely the parts surfaces match and the thinner the paste
> needed to
> make up the difference the faster and therefore the more successful the heat
> transfer will be.
>
Seems strange - the laws of physics would suggest that a coarse finish -
rather than a polished surface - would provide a much greater surface area
for a face to face contact - with the compound filling the pits in the
coarse finish...
Pete
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