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原帖由: Ian Burton ,

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Hi there Fatboysam

The white chalky substance on the chips is called heat paste, or thermal paste. its a substance that fills in any minute gaps between the chip and the heatsink (often in laptops the aluminium case acts as a heatsink).

if there is even a small gap of air between the chip and heatsink, it can act like an insulator, and this will cause overheating. most systems handle overheating by making the chip run slowly to avoid damage, so you might not 'blow' your chip, but it will run like a 386.

My suggestion, is to buy some of this stuff: [product|IF179-010]

its cheap, and will save you heaps of trouble.

make sure the chip and heatsink are both clean, then apply a small amount of this paste to the surface of the chip. not too much, as it will spill over the sides once the heatsink and chip are mated. but you need to make sure that the whole of the chip heat surface is covered.

I hope this helps.

Regards

Ian

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