b. Expansion card riser. See Removing the expansion card riserc. PSU(s). See Removing an AC power supply unitd. 2.5 inch hard drive cage, if applicable. See Removing the optional 2.5 inch hard drive cagee. Internal dual SD module. See Removing the internal dual SD modulef. 1.8 inch SSD cage with backplane. See Removing the 1.8 inch uSATA SSD cage, Removing the1.8 inch uSATA SSD backplaneg. Internal USB key (if installed). See Replacing the internal USB keyh. Cooling shroud. See Removing the cooling shroudi. Heat sink(s). See Removing a heat sinkj. Processor(s)/processor blank. See Removing a processor, Removing a processor blankCAUTION: To prevent damage to the processor pins when replacing a faulty systemboard, ensure that you cover the processor socket with the processor protective cap.k. Memory modules and memory module blanks. See Removing memory modulesl. Cable routing clip. See Removing the cable routing clip5. Disconnect all cables from the system board.Steps1. Remove the screws that secure the system board to the chassis.CAUTION: Take care not to damage the system identification button while removing thesystem board from the chassis.CAUTION: Do not lift the system board by holding a memory module, processor, or othercomponents.2. Lift the system board by holding both the system board holders, and slide the system board towardthe front of the chassis.The connectors are disengaged from the back of the chassis slots.3. Lift the system board out of the chassis.103