The battery normally requires no charging or maintenance throughout its life; however, no battery lasts forever. If the battery fails, the date, time, and configuration information (including passwords) are lost. An error message is displayed when you turn on the computer.
Refer to “Lithium battery notice” on page x for information about replacing and disposing of the battery.
To change the battery:
1.Turn off the computer and all attached devices.
2.Unplug the power cord and remove the cover. See “Removing the cover” on page 10.
3.Locate the battery. See “Identifying parts on the system board” on page 11.
4.If necessary, remove any adapters that impede access to the battery. See “Installing adapters” on page 14 for more information.
5.Remove the old battery.
6.Install the new battery.
7.Replace any adapters that were removed to gain access to the battery. See “Installing adapters” on page 14 for instructions for replacing adapters.
8.Replace the cover, and plug in the power cord. See “Replacing the cover and connecting the cables” on page 23.
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 2, “Using the Setup Utility program,” on page 25.
Erasing a lost or forgotten password (clearing CMOS)
This section applies to lost or forgotten passwords. For more information about lost or forgotten passwords, see the Access IBM program on your desktop.
To erase a forgotten password:
1.Turn off the computer and all attached devices.
2.Remove the cover. See “Removing the cover” on page 10.
3.Locate the Clear CMOS/Recovery jumper on the system board. See “Identifying parts on the system board” on page 11.
22User Guide
