76 Removing and Installing Parts7 If you removed a sound card:a Enter system setup (see "System Setup" on page 107), select Audio Controller, and then changethe setting to On.b Connect external audio devices to the audio connectors on the back panel of the computer.8 If you removed an add-in network connector:a Enter system setup (see "System Setup" on page 107), select Integrated NIC, and then change thesetting to On.b Connect the network cable to the integrated connector on the back panel of the computer.PCI Express CardsYour computer supports one PCI Express x16 card and one PCI Express x1 card.If you are installing or replacing a PCI Express card, follow the procedures in the next section. If you areremoving but not replacing a card, see "Removing a PCI Express Card" on page 79.If you are replacing a card, remove the current driver for the card from the operating system.If you are installing or replacing a PCI card, see "Installing a PCI Card" on page 73.Installing a PCI Express Card1 Follow the procedures in "Before You Begin" on page 59.2 Gently push the release tab on the card retention door from the inside to pivot the door open. Becausethe door is captive, it will remain in the open position (see "Installing a PCI Card" on page 73 for anillustration of the card retention door).card retentiondoorrelease tabs (2)card retentionmechanismWD846bk2.book Page 76 Thursday, September 14, 2006 2:40 PM
