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[finalman]

as the topic says what is the best material for Heat Transferance out of alluminium or copper?

Looking at putting in a Shim on the GPU.

Also should i do a shim to fit over both cores of the GPU or a shim each for the 2 cores on the GPU?

[RDC]

QUOTE(Symph0ny @ Dec 20 2007, 11:57 PM)

The purpose of a shim isn't to go on top of the core, but to go around the core on top of the die.

Depends on your definition of shim, it can be either to fill the space between the chip and sink, or between the die and sink. The way you have that worded sounds like you're talking about a heat spreader, like on the Intel chips, that's not a shim at all, and core (inside the die) isn't the correct term for your explanation either.

It's still not a good idea to put anything between the die and heatsink, you're only adding more thermal resistance, if you want to shim it around the top edge of the chip so the heatsink presses more evenly on the whole chip then you'll have to do some very precise cutting and measuring to ensure it's not going to short out on any of the components on the chip or bee to high/low in relation to the die, that's why that kinda thing on older AMD chips is made of rubber and in Intel ones they've just gone and added the heat spreader.