6. Press the securing tab (if present) on the system board connector as you grasp the card by its top corners, and then ease the card out of theconnector.7. Install a filler bracket in the empty card-slot opening. If you are replacing the card, see Installing PCI and PCI Express Cards.8. Replace the screw that secures the filler bracket to the chassis.9. Push the card retainer back into its original position; push its tip so that its tab clicks into place.10. Replace the computer cover (see Replacing the Computer Cover).11. Connect your computer and devices to electrical outlets, and then turn them on.12. To complete the removal procedure, see Configuring Your Computer After Removing or Installing a PCI/PCI Express Card.Installing PCI and PCI Express Cards1. Follow the procedures in Before You Begin.1 release tab 2 card retainer3 screw 4 alignment guide5 fan cage 6 alignment guide release tab1 PCI Express x16 card 2 securing tab3 PCI Express x16 card slotNOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer. The brackets also keepdust and dirt out of your computer.CAUTION: Do not route card cables over or behind the cards. Cables routed over the cards can prevent the computer cover from closing properlyor cause damage to the equipment.NOTE: If you removed the alignment guide, replace the alignment guide on the card fan cage; push the alignment guide until it clicks into place.NOTE: If you have or are upgrading to the optional dual-graphics configuration, see Installing a PCI Express Graphics Card in a Dual Configuration toinstall a graphics card.