I spent a chunk of New Year's Eve replacing the faulty midplane board
in my new-ish iMac G5,
Tranquility. The midplane is
the entire logic board, processor fan and speaker assembly, and
swopping it requires the removal of the optical and hard drives, ram
chips, display inverter, power supply, airport card and fan cover - a
fairly big job.
Here are some exciting snapshots to accompany my commentary:
1: Back case off, optical drive and fan cover removed.
2: The removed midplane, striped of removable components.
3: The removed parts.
4: Inside the empty casing, the silvered back of the TFT display.
posted by neel