Apple G4 manual

14.Reassemble and test the computer.

Important: Make sure the bottom case is installed correctly. If the slot-load area is slightly bowed, carefully pull the bottom edge of the slot until it clicks into place and becomes flush with the bottom case.

Important: Check the operation of the optical drive. If the drive is installed incorrectly, the optical drive mechanism might not spin correctly and will result in mechanical noise when playing a disc.

PowerBook G4 (1GHz/867MHz) DVD-R/CD-RW & DVD-ROM/CD-RW Optical Drive - 7