Replacing The Heat Sink And Fan Assembly - Lenovo ThinkStation 4353 Hardware Maintenance Manual

Refer to the "Lithium battery notice" in the ThinkStation Safety and Warranty 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 82.
3. Locate the battery. See "Locating parts on the system board" on page 76.
4. Remove the old battery.
Figure 24. Removing the old battery
5. Install a new battery.
Figure 25. Installing a new battery
6. Reinstall the computer cover and connect the cables. See "Completing the parts replacement" on
page 124.
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.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to "Completing the parts replacement" on page 124.

Replacing the heat sink and fan assembly

Attention:
Do not open your computer or attempt any repair before reading and understanding the "Important Safety
Information" on page 1.
This section provides instructions on how to replace the heat sink and fan assembly.
98
ThinkStation Hardware Maintenance Manual