HP Integrity rx2660 Server User Service Guide

Removing and Replacing the System Board
IMPORTANT: If your system board has a TPM installed, you must order a new TPM when you
order a replacement system board. Before replacing the system board, you must first back up the
current TPM settings. See the HP-UX operating system documentation for more information. The
TPM is not a customer-installable component. If you need to replace a TPM on a replacement system
board, contact an HP authorized service provider.
The system board supports the functionality for the following server subsystems and components:
• System management
• Power
• Internal SAS mass storage
• Processors
• 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.
These voltages are 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:
196 Removing and Replacing Server Components