4Make sure the jumper on the new optical drive or new Parallel ATA hard disk drive is in the CS (Cable Select) position. Your drive may vary from the illustration. The Serial ATA hard disk drive does not use Cable Select.
CS SL MA
Cable Select jumper
5Release the drive bay by pulling the latch out away from the chassis and then sliding the drive part way into the front of the chassis. (The latch drive brackets secure the drives in their respective positions in the chassis.)
6Connect the power and data cables from the back of the optical drive you want to add. Reconnect the sound cable, if present.
WARNING: For a second Parallel ATA drive, make sure to connect the data cable labeled Master to the primary hard disk drive, and the data cable labeled Slave to the secondary hard disk drive. If the data cable is not connected correctly, the PC is unable to locate the hard disk drive and data may be lost.
10Upgrading and Servicing Guide
