Attention:

Do not open your computer or attempt any repair before reading and understanding the "Important safety information" in the ThinkStation Safety and Warranty Guide that came with your computer.

Your computer has a special type of memory that maintains the date, time, and settings for built-in features, such as serial-port assignments (configuration). A battery keeps this information active when you turn off the computer.

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.

This section provides information on how to replace the battery.

To change the battery, do the following:

1. Open the computer cover. See "Cover removal".
2. Access the system board.
3. Locate the battery. See "Locating parts on the system board".
4. Remove the old battery.

5. Install the new battery.

6. Replace the computer cover and connect the cables. See "Completing the FRU replacement".
   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.
7. Turn on the computer and all attached devices.
8. Use the Setup Utility program to set the date and time and any passwords.
9. Go to "Completing the FRU replacement".