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Removal and replacement procedures 89
CAUTION: Loss of BIOS settings occurs when the system battery is removed. You must reconfigure
BIOS settings whenever you replace the system 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, system battery life is five to ten years.
To replace the system battery:
1. Power down the server.
2. Disconnect the power cord(s).
3. Unlock the server if necessary and remove the top cover as described in the section “System
cover”.
NOTE: If the expansion board is installed to the PCI cage, remove the PCI cage before releasing
the battery. Refer to the “PCI cage” section in this chapter for detailed procedures.
4. Release the battery from its holder by squeezing the metal clamp that extends above one edge of
the battery. When the battery pops up, lift it out.
5. To insert the new battery, slide one edge of the replacement battery under the holder’s lip with
the positive side up. Push the other edge down until the clamp snaps over the other edge of the
battery.
Figure 82 Replacing the System Battery
BBWC (Optional)
This server can support a BBWC. The BBWC is optional for the shipment.