Apple Power Mac G5 - Manual (Page 57)

Chapter 3 Working Inside Your Computer 57
5 Pull the appropriate drive bay tab down to secure the drive.
6 Connect the power cable and the Serial ATA data cable to the drive.
7 Replace the side panel, following the directions that begin on page 52.
Secure the drive in position by rotating the drive
bay tab to its closed (horizontal) position.
Connect the power cable and the data
cable to the hard disk drive.