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3. Turn off the peripheral devices and disconnect all power cords; then, remove the cover (see “Removing
and installing the cover” on page 119).
Note: When you replace the system board, you must either update the server with the latest rmware or
restore the pre-existing rmware that the customer provides on a diskette or CD image. Make sure that
you have the latest rmware or a copy of the pre-existing rmware before you proceed.
4. Remove the riser-card assembly (see “Removing the riser-card assembly” on page 156).
5. Remove the IBM ServeRAID-BR10il SAS/SATA controller if one is installed (see “Removing an IBM
ServeRAID-BR10il SAS/SATA Controller” on page 158).
6. Remove the DIMM air bafe (see “Removing and installing the DIMM air bafe” on page 121).
7. Remove the heat sink and microprocessor, and set them aside on a static-protective surface for
reinstallation (see “Removing the microprocessor” on page 139).
8. Remove the memory modules and set them aside on a static-protective surface for reinstallation (see
“Replacing a memory module (DIMM)” on page 122).
Note: Make a note of the location of each DIMM as you remove it, so that you can later reinstall it in
the same connector.
9. Remove the virtual media key from the system board and set it aside (see “Replacing the virtual media
key” on page 165). You must reinstall the virtual media key on the new system board.
10.Remove the hypervisor ash device from the USB connector on the system board and set it aside (see
“Replacing a USB embedded hypervisor ash device” on page 133). You must reinstall the hypervisor
ash device on the new system board.
11.Disconnect all cables from the system board. Make a list of each cable as you disconnect it; you can
then use this as a checklist when you install the new system board.
12.Remove the screws 1 that secure the system board to the chassis, and put them in a safe place.
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13.Lift up the system board and carefully remove it from the server, being careful not to damage any
surrounding components.
14.If you are instructed to return the system board, follow all packaging instructions, and use any packaging
materials for shipping that are supplied to you.
144 Hardware Maintenance Manual