Apple G4 (12-INCH DVI) - page 60

58 - PowerBook G4 (12-inch) Take Apart Heatsink: PowerBook G4 (12-inch DVI)
7. Check the thermal pads on the heatsink:
• If you are performing another module replacement and will be using the existing
heatsink, peel away the thermal pads on the underside of the heatsink, and apply
new thermal pads in the orientation shown.
• If you are installing a replacement heatsink, make sure that the thermal pads are
correctly installed as shown.
Note: If any thermal pad residue remains on the logic board, use a black stick to
carefully peel it away.
8. When installing the heatsink, first insert the lower flange of the heatsink panel under
the frame.