Installing System Components | 776 Grasp the expansion card by its edges, and carefully remove it from theexpansion-card connector.7 If you are removing the card permanently, install a metal filler bracketover the empty expansion slot opening, and close the expansion-cardlatch.NOTE: You must install a filler bracket over an empty expansion slot tomaintain Federal Communications Commission (FCC) certification of thesystem. The brackets also keep dust and dirt out of the system and aid inproper cooling and airflow inside the system.Installing the Expansion CardCAUTION: Many repairs may only be done by a certified service technician. Youshould only perform troubleshooting and simple repairs as authorized in yourproduct documentation, or as directed by the online or telephone service andsupport team. Damage due to servicing that is not authorized by Dell is notcovered by your warranty. Read and follow the safety instructions that came withthe product.CAUTION: Expansion cards can only be installed in the slots on the expansion-card riser. Do not attempt to install expansion cards directly into the riserconnector on the system board.1 Unpack the expansion card and prepare it for installation. Forinstructions, see the documentation accompanying the card.2 Turn off the system, including any attached peripherals, anddisconnect the system from its electrical outlet.3 Remove the system-board assembly. See "Removing a System-BoardAssembly" on page 68.4 Remove the four screws that secure the expansion-card assembly.5 Lift the expansion-card assembly away from the system-board assembly.6 Remove the screw securing the filler bracket.
