•
Memory
•
Supplies power to the other server boards:
— Fan/display board
— I/O fan board
— I/O backplane
— SAS backplane
WARNING!
Ensure that the system is powered off and all power sources are disconnected
from the server prior to performing this procedure.
Voltages are present at various locations in the server whenever an ac power source is connected.
This voltage is present even when the main power switch is in the off position.
Failure to observe this warning can result in personal injury or damage to equipment.
CAUTION:
Observe all ESD safety precautions before attempting this procedure. Failure to
follow ESD safety precautions can result in damage to the server.
NOTE:
The system board is the primary location of the UUID. The fan/display board is the
secondary location of the UUID. Do not remove these components at the same time, or the UUID
is deleted.
When replacing the system board you are prompted to copy the secondary UUID to the primary
location (
SEC to PRI
). Reply
y
.
Removing the System Board
To remove the system board, follow these steps:
1.
Save your system configuration and iLO 2 MP configuration settings.
IMPORTANT:
Before removing the system board, record all boot configuration settings
(find the settings using the
INFO ALL
EFI command). You must reset these values after
replacing the battery. Use the
LS
EFI command to gather the LAN configuration information.
You can also use the non-volatile RAM configuration backup (NVRAM) backup utility to
back up and store these values. The utility is located on the HP website at:
http://www.hp.com/go/bizsupport.com
.
For iLO 2 MP configuration settings, see the HP Integrity Integrated Lights Out 2 Management
Processor Operations Guide.
2.
Power off the server and disconnect the power cables. See
“Powering On and Powering Off
the Server” (page 78)
.
3.
Disconnect all external cables from the server rear panel.
4.
If rack mounted, slide the server completely out from the rack. See
“Extending the Server
from the Rack” (page 143)
.
5.
Remove the top cover. See
“Removing and Replacing the Top Cover” (page 144)
.
6.
Remove the fan carrier. See
“Removing the Fan Carrier Assembly” (page 162)
.
7.
Remove the airflow guide. See
“Removing the Airflow Guide” (page 146)
.
8.
Remove the memory. See
“Removing System Memory” (page 174)
.
9.
Remove the processors. See
“Removing a Processor ” (page 177)
.
10. Remove the power supply housing. See
“Removing the Power Supply Housing” (page 183)
.
11. Remove the I/O backplane assembly. See
“Removing the I/O Backplane Assembly” (page 167)
.
Removing and Replacing the System Board
199