[wellylug] cpu temperature reported incorrectly

[Centurion Computer Technology Ltd]

Actually AMD recommend a pahse change thermal gel with heatsink direct
onto the cpu core applications such as with the Duron and Athlon series
of processors.

  This is because the heatsink will expand faster than the core as it
heats up resulting in a pumping action.  This pumping action tends to
cause the mineral oils used in thermal pastes such as Arctic silver to
slow get pumped out leaving effectively a dry joint which will not
conduct heat very well.  However this may take years to actually happen
and is probably only an issue on machines which are frequently swithced
on and off or have wildly varying processing loads.

Interestingly all the AMD64 processors except the mobile ones have a
heat spreader stuck onto the core (using thermal gel), and you can use
your favourite performance thermal paste for the heatsink interface.

On Sat, 2004-10-30 at 02:26, David Antliff wrote:
> On Thu, 28 Oct 2004, Brent Wood wrote:
> >> correct solution is to remove the heat sink, reapply the thermal gell, and
> >> re-seat the heat sink.)
> >
> > Worth doing if it will stop the cpu overheating. Doesn't take long, but a bit
> > fiddly in those little cases.
> 
> I presume the original poster meant thermal paste - just remember you're 
> trying to exclude the air from the regions where the metal doesn't make 
> contact - you are not trying to create a layer of paste between the 
> surfaces. The less you can get away with applying, the better. If you 
> stuff it up with too much paste, you risk actually trapping a bubble of 
> air and then you might as well not use it. I use an amount equal to about 
> half a grain of medium rice and smooth it out with the edge of my Flybuys 
> card.
> 
> Arctic Silver has good instructions on their website.
> 
> -- 
> David.
> 
> P.S. don't use acetone on your Flybuys card...
-- 
	Daniel Reurich
	Centurion Computer Technolgy Limited
	
	Ph: (04) 565 1832
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