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Refer to “Lithium battery notice” on page xii for information about replacing and
disposing of the battery.
To change the battery:
1. Turn off the computer and disconnect the power cord from the electrical outlet
and from the computer.
2. Open the computer cover. See “Opening the cover” on page 20.
3. Access the system board. See “Accessing system board components and
drives” on page 22.
4. Locate the battery. See “Identifying parts on the system board” on page 23.
5. Remove the old battery.
6. Install the new battery.
7. Reinstall the PCI riser assembly if removed.
8. Close the computer cover, and connect the cables. See “Closing the cover and
connecting the cables” on page 35.
Note: When the computer is turned on for the first time after battery
replacement, an error message might be displayed. This is normal after
replacing the battery.
9. Turn on the computer and all attached devices.
10. Use the Setup Utility program to set the date and time and any passwords.
See Chapter 5, “Using the Setup Utility,” on page 45.
Erasing a lost or forgotten password (clearing CMOS)
This section applies to lost or forgotten passwords. For more information about
lost or forgotten passwords, go to the ThinkVantage Productivity Center program.
To erase a forgotten password:
1. Open the computer cover. See“Opening the cover” on page 20.
2. Access the system board. See “Accessing system board components and
drives” on page 22.
3. Locate the Clear CMOS/Recovery jumper on the system board. See
“Identifying parts on the system board” on page 23.
4. Move the jumper from the standard position (pins 1 and 2) to the
maintenance or configure position (pins 2 and 3).
5. Reinstall the PCI riser assembly if removed.
6. Lower the drive bay assembly and reconnect any cables that were
disconnected.
34 User Guide