117Your Dell™ computer provides slots for PCI/PCI-X and AGP cards. For more information,see "Specifications" or the system board components illustration for your computer.NOTE: To meet PC99 requirements, your Dell computer uses only PCI slots. ISA cards are notsupported.If you are installing or replacing a card, follow the procedures in the next section. If you areremoving but not replacing a card, see "Removing a Card."1 Shut down the computer through the Start menu.2 Ensure that your computer and attached devices are turned off. If your computer andattached devices did not automatically turn off when you shut down your computer,turn them off now.NOTICE: To disconnect a network cable, first unplug the cable from your computer and thenunplug it from the network wall jack.3 Disconnect any telephone or telecommunication lines from the computer.4 Disconnect your computer and all attached devices from electrical outlets, and thenpress the power button to ground the system board.5 If you have installed a padlock through the padlock ring on the back panel, remove thepadlock.CAUTION: To guard against electrical shock, always unplug your computer fromthe electrical outlet before opening the cover.NOTICE: Before touching anything inside your computer, ground yourself by touching anunpainted metal surface, such as the metal at the back of the computer. While you work,periodically touch an unpainted metal surface to dissipate any static electricity that could harminternal components.6 Open the computer cover.Installing a CardCAUTION: Before you perform this procedure, follow the safety instructions intheSystem Information Guide.1 Press the lever on the card retention arm and raise the retention arm.
