iMac G5 17" Model A1058 Logic Board Replacement

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Grab the logic board from both edges and lift it out of the midplane, minding any cables that may get caught.
When reinstalling your logic board, be sure to clean and apply a new layer of thermal paste to the U3 chip (highlighted in red) located on the underside of your logic board as well as its copper heat sink attached to the midplane.
We have a thermal paste guide that makes applying thermal paste a snap.

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