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 the “Lithium coin cell battery notice” in the
Safety, Warranty, and Setup Guide
for information about
replacing and disposing of the battery.
To replace the battery, do the following:
1. Turn off the computer and disconnect all power cords from electrical outlets.
2. Remove the computer cover. See “Removing the computer cover” on page 81.
3. Locate the battery. See “Locating parts on the system board” on page 72.
4. Remove the old battery.
Figure 20. Removing the old battery
5. Install a new battery.
Figure 21. Installing a new battery
6. Reinstall the computer cover and connect the cables. See “Completing the parts replacement” on
page 116.
Note:
When the computer is turned on for the first time after replacing the battery, 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, time, and any passwords. See Chapter 6 “Using the Setup
Utility program” on page 55.
9. To complete the installation or replacement, go to “Completing the parts replacement” on page 116.
Replacing the primary hard disk drive
Attention:
Do not open your computer or attempt any repair before reading and understanding “Important safety information”
on page 1.
This section provides instructions on how to replace the primary hard disk drive.
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