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Removal and replacement procedures 70
Warning: The serial number should ONLY be modified by qualified personnel.
This value should always match the serial number located on the chassis.
5. Press the Enter key to clear the warning.
6. Enter the serial number and press the Enter key.
7. Select Product ID. The following warning appears:
Warning: The Product ID should ONLY be modified by qualified personnel. This
value should always match the Product ID on the chassis.
8. Enter the product ID and press the Enter key.
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 automatically reboots.
System battery
If the server no longer automatically displays the correct date and time, you might have 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. Do one of the following:
o For tower models, open and remove the bezel ("Remove the tower bezel" on page 26).
o For rack models, if installed, remove the security bezel (on page 26).
2. Power down the server (on page 25).
3. Remove all power:
a. Disconnect each power cord from the power source.
b. Disconnect each power cord from the server.
4. For tower models, do the following:
a. Place the server on a flat, level surface with the access panel facing up.
b. Remove the access panel ("Access panel" on page 28).
5. For rack models, do the following:
a. Extend the server from the rack (on page 27).
b. Remove the access panel ("Access panel" on page 28).
c. Release thumbscrews and remove the rack bezel.
6. Remove the air baffle ("Air baffle" on page 29).