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Hi, really quick question that I can’t seem to find the answer to: Do I need a new logic board to install a new heat sink? My Macbook (late 2008) has a partially blackened heat sink, and the guy in the Apple store said I need a new one AND a new logic board to go with it. I’m not adverse to a bit of DIY - is it possible to just buy a new heat sink and (using your guide) stick it in myself… rather than shell out for a whole new logic board? Thanks and sorry if this has already been answered elsewhere! Update Thanks for your help again - I’ll disassemble it tonight and post a photo. I’ve used the temperate/fan apps and they tell me that the fans are always way too high - 4000 when resting and 6000 at least most of the time. The processor is the bit that seems to get the hottest, 110+ like I said…
The heatsink and the logic board are two completely separate things, both of which can be replaced by itself. However, if you say it is black, the guy at the Apple store may have seen damage on the logic board that led to the blackening. Have you had any other issues with the computer? There may be something burned on the board that also needs replacing, which unfortunately means that the whole logic board needs to be replaced. Hope this Helps.
Hi! I have a very similar question - I am replacing my logic board as the macbook died, and I have noticed that the heatsink has turned black along the top (its still mostly copper, but 2-3cms of it has gone black (as has a bit of the surrounding casing) but there is no heat damage to the logic board. Is it ok to use this heatsink, or does this blackening mean its damaged in some way? I’ve got a photo of the heatsink still connected to the fan) here http://mc.tt/02OFIdcSDw Hope someone can help! Thank you! Karen Williams
