PowerBook G4 (15-inch FW800) Take Apart -
15
Memory Door and Memory Cards
7. Cards should be flat and secure on both sides.
8. Install the memory door.
9. Replace the battery.
10. Use Apple System Profiler to verify that the memory is recognized. (Choose the menu
bar Apple logo (
) > About This Mac, click More Info..., select the System Profile tab,
open the Memory Overview.)