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5. Install a new battery.
Figure 23. Installing a new battery
6. Reinstall the computer cover and connect the cables. See “Completing the parts replacement” on
page 67.
Note: When the computer is turned on for the rst 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 7 “Using the Setup
Utility program” on page 77.
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 67.
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 v.
This section provides instructions on how to replace the heat sink and fan assembly.
CAUTION:
The heat sink and fan assembly might be very hot. Turn off the computer and wait three to ve
minutes to let the computer cool before removing the computer cover.
To replace the heat sink and fan assembly, 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 34.
3. Lay the computer on its side for easier access to the system board.
4. Locate the heat sink and fan assembly. See “Locating parts on the system board” on page 11.
5. Disconnect the heat sink and fan assembly cable from the microprocessor fan connector on the system
board. See “Locating parts on the system board” on page 11
.
44 ThinkCentre User Guide