Upgrading 37
To replace the battery:
1. Before proceeding, record your custom BIOS settings.
2. Observe the safety and ESD precautions at the beginning of this chapter.
3. Open the chassis and locate the battery.
4. Push the upper end of the metal retainer away from the battery-the battery pops up.
5. Remove the battery from its socket.
6. Dispose of the battery according to local ordinance.
7. Remove the new lithium battery from its package.
8. Being careful to observe the correct polarity, lay the battery in the socket.
9. Push the battery down-the metal retainer locks the battery in the socket.
10. Close the chassis.
11. Run Setup to restore the configuration settings to the RTC.
12. Restore your custom BIOS settings.
OM14141
Figure 20. Replacing the Back up Battery