7. Remove the air baffle (see “Removing the air baffle” on page 206).
Important: Before you remove the DIMMs, note which DIMMs are in which
connectors. You must install them in the same configuration on the
replacement system board.
8. Remove all DIMMs, and place them on a static-protective surface for
reinstallation (see “Removing a memory module (DIMM)” on page 250).
9. Remove the fans (see “Removing a hot-swap dual-motor hot-swap fan” on
page 257).
10. Disconnect all cables from the system board (see “Internal cable routing and
connectors” on page 194).
Attention:
v In the following step, do not allow the thermal grease to come in contact
with anything, and keep each heat sink paired with its microprocessor for
reinstallation. Contact with any surface can compromise the thermal grease
and the microprocessor socket; a mismatch between the microprocessor
and its original heat sink can require the installation of a new heat sink.
v Disengage all latches, release tabs or locks on cable connectors when you
disconnect all cables from the system board. Please refer to “Internal cable
routing and connectors” on page 194 for more information. Failing to release
them before removing the cables will damage the cable sockets on the
system board. The cable sockets on the system board are fragile. Any
damage to the cable sockets may require replacing the system board.
11. Remove each microprocessor heat sink and microprocessor; then, place them
on a static-protective surface for reinstallation (see “Removing a
microprocessor and heat sink” on page 279).
12. Pull out and lift up the pin and the thumbscrews on each side of the system
board.
Chapter 5. Removing and replacing server components 291