Appendix A Installing A New Battery; System Board Battery Replacement - Compaq ProLiant 800 Manual

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Appendix A
Installing a New Battery
The Compaq ProLiant 800 server has two CMOS memories, one on the
system board and the other on the expansion backplane board. Both require
batteries to maintain their data.

System Board Battery Replacement

When your server no longer automatically displays the correct date and time,
you may need to replace the battery that provides power to the real-time
clock. Under normal use, battery life is usually about five to ten years. Use
Compaq replacement battery 160274-001 or a comparable 600-milliampere
alkaline, 4.5-volt battery
CAUTION:
before you install a new battery.
CAUTION:
take the following steps before installing the battery.
1. Run the System Configuration Utility and note the drive type that is
displayed in the summary.
2. If the drive type number is 65 or 66, make a note of the drive
parameters. You can view these parameters by restarting the server and
pressing F10 when the square cursor appears in the upper-right corner
of the screen. From the Compaq Utilities menu, select the System
Configuration Utility to view the parameters. It is important to write
down these parameters before continuing.
3. When you have completed the battery installation, you may need to run
the System Configuration Utility and reconfigure your system using the
drive table parameters noted earlier.
It is important to make a set of backup diagnostics diskettes
If you are using a third-party hard drive, it is important to
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Compaq ProLiant 800 Server Reference Guide
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