Kbase Article of the Week: PowerBook G4 to PowerBook G4 (1 GHz/867 MHz): How to Install an AirPort Card ⇢

Apple Support:

This document explains how to install an AirPort Card in certain PowerBook G4 computers.

It involves shutting down the machine and waiting 30 minutes to let the internal components cool down, Torx screwdrivers and more.