1Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet and peripherals.
2Open the system. See "Opening the System" on page 79.
3Remove the expansion card stabilizer. See "Removing the Expansion Card Stabilizer" on page 81.
4Remove the cooling shroud. See "Removing the Cooling Shroud" on page 82.
5Disconnect all the cables from the system board.
6If applicable, remove all expansion cards and any attached cables. See "Removing an Expansion Card" on page 107.
7If applicable, remove the iDRAC6 Express card. See "Removing an iDRAC6 Express Card (Optional)" on page 109.
8If required, disconnect the cables from the SATA backplane.
9Remove all the memory modules and memory blanks. See "Removing Memory Modules" on page 102.
NOTE: To ensure proper reinstallation of memory modules, record the memory module socket locations.
10Remove the system fan. See "Removing the System Fan" on page 96.
WARNING: The heat sink can get hot during operation. To avoid burns, ensure that the system has sufficient time to cool before removing the system board.
11Remove the heat sink and processor. See "Removing a Processor" on page 112.
12Carefully route any loose cables away from the edges of the system board.
13To remove the system board, using a Phillips screwdriver, remove all the screws on the board. See Figure
14While holding the two touch points on the system board, slide the system board toward the front of the system. See Figure
15Lift the system board away from the chassis.