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Chapter 6 Replacing Parts
84
Replacing the NetRAID Battery Backup Module (Optional)
Unplug cable
System
Backplane
Battery Backup Module (BBM)
Battery Backup Module Location
The installation procedure is the same for the rack-mount and the pedestal HP NetServers once you gain
access to the I/O side of the chassis.
1. Log off all users and gracefully shut down the network operating system according to directions
in your NOS documentation.
2. Power down the HP NetServer.
3. Disconnect the power cords and cables, and if necessary, label each one to support re-
assembly.
CAUTION The power supplies will continue to provide standby current to the NetServer until
the power cable is disconnected.
4. For both rack-mounted and pedestal models, gain access to the I/O side of the chassis.
NOTE In the rack-mounted version, the I/O is under the top cover, in the pedestal version,
the I/O is under the left cover.
WARNING Always disconnect the power cords before removing the covers, to avoid exposure
to high energy levels that may cause burns when parts are short-circuited by metal
objects such as tools or jewelry. Disconnect any telephone cables to avoid exposure
to shock hazard from telephone ringing voltages.
5. Unplug the cable from the I/O board.