Replacing The Power Supply Assembly - Lenovo ThinkCentre 7515 Maintenance Manual

To replace the battery:
1. Remove the computer cover. See "Removing the computer cover" on page 86.
2. Locate the battery. See "Locating parts on the system board" on page 89.
3. Remove the old battery.
Figure 12. Removing the old battery
4. Install a new battery.
Figure 13. Installing a new battery
5. Reinstall the computer cover and connect the cables. See "Completing the FRU
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:
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Hardware Maintenance Manual
replacement" on page 120.
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 49.
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
1. Remove the computer cover. See "Removing the computer cover" on page 86.
2. Disconnect the power supply assembly cables from the system board and all
drives. See "Locating parts on the system board" on page 89.