5.11 RTC Battery
1. Save all work, exit all applications, and shut down the computer.
2. Remove the modem/combo card cover and the modem/combo card (Section 5.10).
3. Disconnect the RTC battery cable from the system board (Figure 5-17).
4. Remove the battery from the base assembly .
Figure 5-17. Disconnecting the RTC Battery Cable
Reverse the above procedure to replace the RTC battery.
Removal and Replacement Procedures 5-19