Note: Avoid unnecessary contact with thermal gel or either side of thermal pads as dirt and body oils reduce the thermal pad's conductivity.

6.From the Thermal Pad Kit (076-1033), center and install the square thermal pads on the heatsink as follows:

Smaller square pad on the left most mating surface

Larger square pad on the right most mating surface (if the kit includes two same- size pads, apply them, with the backing removed, one on top of the other as a double layer)

Note: To install a thermal pad, remove the protective backing from one side of the pad.

Logic Board

PowerBook G4 (17-inch) Take Apart - 77

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Apple Powerbank G4 manual