iMac Intel 21.5" EMC 2308 Heat Sink Replacement

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Carefully lift the logic board off the heat sink.
If the two components appear stuck together, carefully pry them apart with the flat end of a spudger, being careful not to disturb any surface-mount components on the logic board.
Make sure to apply a new layer of thermal paste before reattaching the heat sink. Our thermal paste guide makes it easy.

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