Removal and replacement procedures 60
System battery
The server uses nonvolatile memory that requires a 3- volt lithium coin cell battery to retain system
information when power is removed. The battery is located on the system board as item 1 shown in
Figure 3-38.
Figure 3-38 System battery location
WARNING: When replacing the system battery…
Replace the battery with the same type as the battery recommended by HP. Use of another battery type
may present a risk of fire or explosion.
A risk of fire and chemical burn exists if the battery is not handled properly. Do not disassemble, crush,
puncture, or short external contacts, or expose the battery to temperatures higher than 60°C (140°F).
Do not dispose of a used battery in water or fire. Dispose of used batteries according to manufacturer's
instructions.
CAUTION: Loss of BIOS set tings occurs when the batter y i s r emoved. The BIOS must be reconfigured
after replacing the battery.
NOTE: If the server no longer automatically displays the correct date and time, you may need to
replace the system battery. Under normal usage, battery life is five to ten years.
To remove an d replace the system battery:
1. Power down the server.
2. Disconnect th e p ower cord(s).
3. Unlock the server if necessary and remove t h e access panel as described in the sect ion “System
covers .”
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