Epson Epson - Manual (Page 119)

7. If you are installing a CD-ROM drive, you need to connect
the audio cable; it has small plastic connectors at either end.
Follow the instructions that came with your sound card to
connect the audio cable to the card. If you need to install a
sound card first, follow the instructions under “Installing
an Option Card” in Chapter 4.
8. Position the audio cable connector so that the tab faces up
and aligns with the notch in the CD-ROM drive’s audio
connector. Then push in the connector.
9. If you installed a hard disk drive in one of the external bays,
replace the faceplate. Insert one side of the plate, then
gently press on the other side until it snaps into place.
10. Replace the internal mounting bracket and the drives it
contains. See “Replacing the Bracket in the Computer” for
instructions.
Installing and Removing Slimline Drives 5-21