Installing System Components | 163 
 
 
Assembly" on page 142. 
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. 
7  Grasp the filler bracket by its edges, and carefully remove it from the 
riser card. 
NOTE: Keep this bracket in case you need to remove the expansion card. 
Filler brackets must be installed over empty expansion-cards slots to 
maintain FCC certification of the system. The brackets also keep dust and 
dirt out of the system and aid in proper cooling and airflow inside the 
system. 
8  Holding the expansion card by its edges, position the card so that the 
card-edge connector aligns with the riser card. 
9  Insert the card-edge connector firmly into the riser card until the card 
is fully seated. 
10  Install the expansion slot lock cover by securing the four screws. 
11  Place the expansion-card assembly into the system-board assembly. 
12  Replace the screws that secure the expansion-card assembly. 
13  Replace the system-board assembly. See "Installing a System-Board 
Assembly" on page 143.