Users Guide

18 SAS Information Update
Figure 1-10. SAS Peripheral Interposer Board Connectors
Replacing a Peripheral Interposer Board
CAUTION: Any installation that requires removal of the system cover is intended solely to be performed by
trained service technicians. See your Product Information Guide for complete information about safety
precautions, working inside the computer, and protecting against electrostatic discharge.
Removing a Peripheral Interposer Board
1 Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
2 Open the system. See "Opening the System" in the Installation and Troubleshooting Guide .
3 Remove the cooling shroud. See "Removing the Cooling Shroud" in the Installation and
Troubleshooting Guide
.
4 Remove the processor filler blanks or heat sinks from processors 2 and 4. See "Removing a Processor"
in the
Installation and Troubleshooting Guide .
5 Disconnect the SAS and backplane power cables from the back of the SAS backplane. See Figure 1-8.
For improved access, remove the SAS cable(s) from the clip that is attached to the fan-3 air guard
and move the cable(s) away from the backplane. See Figure 1-8.
6 Disconnect the power cable from the top of the interposer board. See Figure 1-11.
NOTICE: When disconnecting the control-panel cable, hold the white pull-tab next to the control-panel cable
connector to prevent damage to the interposer board or the cable itself.
7 Disconnect the control-panel cable from the control-panel cable connector on the top back
of the interposer board. See Figure 1-11.
8 Disconnect the data interface cable from the back of the interposer board.
1 control panel 2 power 3 backplane power
4 data interface 5 fans (2)
2
1
3
4
5