3. Disconnect the system from the electrical outlet and disconnect the peripherals.4. Remove the system board assembly.1. Remove the screws that secure the expansion card assembly.2. Lift the expansion card assembly out of the system board assembly.Figure 24. Removing the expansion card assembly for 1U node1. expansion card assembly 2. screw (4)3. system board assembly3. Remove the screw that secures the expansion card.4. Hold the expansion card by its edges, and carefully remove it from the riser card.NOTE: If you are removing the card permanently, install an expansion card slot cover over theempty expansion slot opening, and close the expansion card latch.NOTE: You must install a filler bracket over an empty expansion slot to maintain FederalCommunications Commission (FCC) certification of the system. The brackets also keep dustand dirt out of the system and aid in proper cooling and airflow inside the system.59