106 Installing System Components8 If you are not replacing the RAC card, disconnect and remove the ribboncables from the system board and insert the plastic filler plug in the systemback panel.NOTICE: When detaching the RAC cables from the system board, squeeze themetal ends of the cable connectors and gently work the connector out of thesocket. Do not pull on the cable to unseat the connector. Doing so can damage thecable.9 Reinstall expansion-card riser 1. See "Replacing Expansion-Card Riser 1"on page 99.10 Reinstall all expansion cards in expansion-card riser 1. See "Installing anExpansion Card" on page 91.11 Close the system. See "Closing the System" on page 71.Installing a RAC 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 Turn off the system, including any attached peripherals, and disconnectthe system from the electrical outlet.2 Open the system. See "Opening the System" on page 71.3 Remove all expansion cards from expansion-card riser 1. See "Removing anExpansion Card" on page 92.4 Remove expansion-card riser 1. See "Removing Expansion-Card Riser 1"on page 99.5 If you are installing a RAC card for the first time, remove the plastic fillerplug from the system back panel. See Figure 3-20.6 Angle the RAC card so that its NIC connector inserts through the back-panel RAC card opening, and then straighten the card.7 Position the back edge of the card so that the cutout on the edge of thecard inserts into the support standoff. See Figure 3-20.
