Replacing The Power Supply Assembly - Lenovo ThinkCentre A58 Hardware Maintenance Manual

Refer to the "Lithium battery notice" in the ThinkCentre Safety and Warranty Guide
for information about replacing and disposing of the battery.
To replace the battery, do the following:
1. Remove the computer cover. See "Removing the computer cover" on page 90.
2. Locate the battery. See "Locating parts on the system board" on page 90.
3. Remove the old battery.
Figure 14. Removing the old battery
4. Install a new battery.
Figure 15. Installing a new battery
5. Reinstall the computer cover and connect the cables. See "Completing the parts
6. Turn on the computer and all attached devices.
7. Use the Setup Utility program to set the date, time, and any passwords. See

Replacing the power supply assembly

This section provides instructions on how to replace the power supply assembly.
To replace the power supply assembly, do the following:
1. Remove the computer cover. See "Removing the computer cover" on page 90.
2. Disconnect the power supply assembly cables from the system board and all
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Hardware Maintenance Manual
replacement" on page 118.
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.
Chapter 6, "Using the Setup Utility," on page 51.
Attention
Do not open your computer or attempt any repair before reading and understanding the
"Important safety information" in the ThinkCentre Safety and Warranty Guide that came with
your computer. To obtain a copy of the ThinkCentre Safety and Warranty Guide, go to:
http://www.lenovo.com/support
drives. See "Locating parts on the system board" on page 90.