Procedure
1. Read the safety information that begins on “Safety” on page vii, “Handling
static-sensitive devices” on page 285, and “Installation guidelines” on page
283.
2. Turn off the server and any attached devices.
3. Turn off the peripheral devices and disconnect all power cords.
Note: When you replace the system board, you must either update the server
with the latest firmware or restore the pre-existing firmware that the customer
provides on a diskette or CD image. Make sure that you have the latest
firmware or a copy of the pre-existing firmware before you proceed.
4. Pull the power supplies out of the rear of the server, just enough to disengage
them from the server.
5. Remove the top cover (see “Removing the top cover” on page 146).
6. Remove all PCI riser-card assemblies and adapters (see “Removing a
riser-card assembly” on page 180 and “Removing an adapter” on page 185).
7. Remove the air baffle (see “Removing the air baffle” on page 148).
8. Remove the fan cage assembly (See “Removing the fan cage assembly” on
page 172).
9. Remove any backplate assembly or any backplane (See “Removing the
2.5-inch simple-swap backplate assembly/hot-swap hard disk drive
backplane” on page 232 and “Removing the 3.5-inch simple-swap backplate
assembly/hot-swap hard disk drive backplane” on page 235).
10. Remove the dedicate slotless RAID controller (see “Removing the dedicated
slotless RAID controller” on page 183).
11. Remove the paddle card module (see “Removing the power paddle module”
on page 150).
12. Remove the memory modules and set them aside on a static-protective surface
for reinstallation (see “Removing a memory module” on page 166).
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.
13. (Trained technician only) Remove all heat sinks and microprocessors, and set
them aside on a static-protective surface for reinstallation (see “Removing a
microprocessor and heat sink” on page 258).
Notes: 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.
14. 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 (see “Internal cable routing and connectors” on page 131 for
more information).
Attention: Disengage all latches, release tabs or locks on cable connectors
when you disconnect all cables from the system board. 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.
Chapter 5. Removing and replacing components 277
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