Removal and replacement procedures 53
9.
Press the Esc key to close the menu.
10. Press the Esc key to exit RBSU.
11. Press the F10 key to confirm exiting RBSU. The server blade automatically reboots.
System battery
If the server blade 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 component:
1. Power down the server blade (on page 23).
2. Remove the server blade (on page 24).
3. Remove the access panel ("Access panel" on page 25).
4. Remove all hard drives ("Hard drive" on page 26).
5. Remove all hard drive blanks ("Hard drive blank" on page 26).
6. Remove the hard drive backplane ("Hard drive backplane" on page 32).
7. Remove the front panel/hard drive cage assembly ("Front panel/hard drive cage assembly" on page
33).
8. Remove the battery tray from each side of the chassis ("Battery tray" on page 27).
Removing DIMMs, heatsinks, processors, and mezzanine cards is not required for this procedure.
9. Remove the system board.
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