Quote:
Originally posted by Cossey3
the top link Cathar posted shows why it wouldnt work, the thermal conductivity of copper is 400W/m/k (higher is better) for layers of graphite it is 2000 along the layers and 10 across them. putting layers on with a pencil will result in layers parallel to the cpu so it will be acting as a insulator rawther than a conductor. to make it work you would need layers coming up vertically from the cpu which would need to be grown on the cpu as it would be too difficult to place them on it. you could try getting hold of some silver foil and using that compressed between the cpu and block.
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I presume there must be some value to the pyrolytic graphite sheets that Panasonic/Matsushita are selling through Digi-Key for $30 for a 60mm X 90mm sheet.
A thermal conductivity of 10 W/m/k puts the material in the same ballpark as high end thermal paste for CPU to WB heat conduction. Since CPU's tend to have hotspots, the high lateral thermal conductivity of the material may give a significant advantage as a heat spreader. I would guess it can't fill surface irregularities as well as paste though.
I'd be curious to find out what kind of results someone got with this stuff on an Athlon. (I would guess it's much less useful with a P4 due to the IHS.)