Installing System Components 109Replacing the LOM Daughter CardCAUTION: Only trained service technicians are authorized to remove the systemcover and access any of the components inside the system. See your ProductInformation Guide for complete information about safety precautions, workinginside the computer, and protecting against electrostatic discharge.1 Angle the LOM card so that its NIC connectors are positioned toward theback-panel LOM card opening.2 Straighten the card so that the cutouts on the side edges of the card insertinto the two support standoffs. See Figure 3-21.3 Slide the card back slightly and align the front edge of the LOM card withthe two front plastic retention standoffs adjacent to the LOM systemboard connector, and press down the side of the card until it is fully seated.See Figure 3-20.When the front of the card is fully seated, the plastic standoff snaps overthe edge of the card.4 Reinstall all expansion cards in expansion-card riser 2. See "Installing anExpansion Card" on page 91.5 Close the system. See "Closing the System" on page 71.Optical DriveAn optional slimline DVD or CD-RW/DVD-RW optical drive is mounted on atray that slides in the front panel and connects to the controller on the systemboard.NOTE: DVD devices are data only.Removing the Optical Drive from the SystemCAUTION: Only trained service technicians are authorized to remove the systemcover and access any of the components inside the system. See your ProductInformation Guide for complete information about safety precautions, workinginside the computer, and protecting against electrostatic discharge.1 Turn off the system, including any attached peripherals, and disconnectthe system from its electrical outlet.2 Open the system. See "Opening the System" on page 71.3 Disconnect the optical drive cable from the back of the optical drive tray.