Removal and replacement procedures 59
CAUTION: Before starting this procedure, read the information about protecting against
electrostatic discharge ("Preventing electrostatic discharge" on page 25).
If the 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 5 to 10 years.
WARNING: The computer contains an internal lithium manganese dioxide, a vanadium
pentoxide, or an alkaline battery pack. A risk of fire and burns exists if the battery pack is not
properly handled. To reduce the risk of personal injury:
• Do not attempt to recharge the battery.
• Do not expose the battery to temperatures higher than 60°C (140°F).
• Do not disassemble, crush, puncture, short external contacts, or dispose of in fire or water.
• Replace only with the spare designated for this product.
To remove the battery:
1. Power down the server (on page 26).
2. Extend or remove the server from the rack ("Extending the server from the rack" on page 27,
"Remove the server from the rack" on page 28).
3. Remove the access panel ("Removing the access panel" on page 28).
4. Locate the battery ("Internal components" on page 75). It might be necessary to remove expansion
boards (on page 48) from and around slot 9 to access the battery.
5. Remove the battery.
To replace the component, reverse the removal procedure.
Run the RBSU to configure the server after replacing the battery. See the HP ROM-Based Setup Utility User
Guide on the Documentation CD for more detailed information.
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