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PowerBook G4 (1GHz/867MHz) Rib Frame and Heat Exchanger - 9
17. If replacing the rib frame but reusing the heat exchanger, scrape off the thermal
transfer material residue from the area shown. Apply new thermal transfer material to
the logic board chip.
Replacement Notes: If replacing the heat exchanger, transfer the hex nut and screw to
the replacement heat exchanger.
When replacing the heat exchanger, check that the audio cable is routed as shown.
If replacing the rib frame, transfer the battery connector to the replacement rib frame, if
needed.
Ensure that a modem filter board cable is attached to the replacement rib frame; if not,
transfer the cable. The cable should route as shown below.
Check that the EMI clip for the optical drive’s flex cable has been removed for transfer to
the replacement rib frame.
18. Install the replacement rib frame and/or heat exchanger, and reassemble and test the
computer.