Removing and Installing Parts 91NOTICE: Do not route card cables over or behind the cards. Cables routed over the cards can preventthe computer cover from closing properly or cause damage to the equipment.6 Press the retention arm into place, securing the card(s) in the computer.NOTICE: To connect a network cable, first plug the cable into the network port or device and then plugthe cable into the computer.7 Replace the computer cover, reconnect the computer and devices to electrical outlets, andthen turn them on.8 If you removed a sound card or a network adapter, see "Network Adapter and Sound CardSettings" on page 94.9 Uninstall the driver for the card that you removed.Installing PCI and PCI Express CardsNOTICE: If you have or are upgrading to the optional dual-graphics configuration, see "Installing PCIExpress Graphics Cards in a Dual Configuration" on page 86 to install a graphics card.1 Follow the procedures in "Before You Begin" on page 69.2 Press the lever on the card retention arm and raise the retention arm.alignment baralignment guideretention armfiller bracket
