Installing System Components 91
3
Connect the control panel cables. See Figure3-20.
4
Close the system. See "Closing the System" on page55.
System Board (Service-Only Procedure)
The system board and system board tray are removed and replaced as a single
assembly.

Removing the System Board Assembly

CAUTION: Only trained service technicians are authorized to remove the system
cover and access any of the components inside the system. Before performing any
procedure, see your Product Information Guide for complete information about
safety precautions, working inside the computer and protecting against
electrostatic discharge.
1
Open the system. See "Opening the System" on page 54.
2
Remove the cooling shroud. See "Removing the Cooling Shroud" on
page56.
3
Remove the heat sink and processor. See "Replacing the Processor" on
page85.
4
Remove the memory modules. See "Removing Memory Modules" on
page84.
NOTE: As you remove the memory modules, record the memory module
socket locations to ensure proper installation.
5
If applicable, disconnect the optical drive interface cable from the IDE
connector on the system board. See Figure6-2.
6
Disconnect the control-panel interface cable from the FP_CONN1
connector on the system board. See Figure6-2.
7
Disconnect the hard-drive interface cables:
a
If a SAS controller is installed, disconnect the interface cable from the
controller card.
b
If the system hard drives are connected to the integrated controller,
disconnect the interface cables from the SATA_0 and SATA_1
connectors on the board. See Figure6-2.
book.book Page 91 Thursday, August 30, 2007 3:30 PM