5. If you have a CD-ROM drive audio cable, connect it to the drive and thesystem board.To connect an additional IDE CD drive or DVD drive1. Locate the secondary IDE connector on the system board and thethree-connector signal cable. See “Identifying parts on the system board” onpage 44.2. Connect the extra connector in the signal cable to the new CD drive or DVDdrive.3. Your computer has extra power connectors for additional drives. Connect apower connector to the drive.To connect an additional IDE hard disk drive1. You will have to obtain a three-connector signal cable to connect your newhard disk.2. Remove the two-connector cable from the hard disk drive.3. Locate the primary IDE connector on the system board. One end of thethree-connector cable connects to the hard disk drive and the other connects tothe system board. See “Identifying parts on the system board” on page 44.4. Connect the extra connector in the signal cable to the new hard disk drive.5. Your computer has extra power connectors for additional drives. Connect apower connector to the drive.What to do nextv To work with another option, go to the appropriate section.v To complete the installation, go to “Replacing the cover and connecting thecables” on page 52.Installing a Rope ClipTo help prevent hardware theft, you can add a 3/16 inch or 5 mm Rope Clip andcable to your computer. After you add the security cable, make sure that it doesnot interfere with other cables that are connected to the computer.To install a Rope Clip:1. Remove cover (see “Removing the cover” on page 41).2. Use a tool, such as a screwdriver, to remove the two metal knockouts.3. Insert the Rope Clip through the rear panel; then attach and tighten the nutswith an appropriately sized or adjustable wrench.4. Replace the computer cover. For more information, see “Replacing the coverand connecting the cables” on page 52.5. Thread the cable through the Rope Clip and around an object that is not a partof or permanently secured to the building structure or foundation, and fromChapter 5. Installing internal options — microtower model 51