Lenovo ThinkCentre 0401, Hardware Maintenance Manual, Page: 131 / 170

8. Reinstall the power supply assembly. See “Installing a power supply
assembly” on page 120.
9.
Reinstall the optical drive. See “Installing an optical drive” on page 92.
10. Reinstall the hard disk drive. See “Installing a hard disk drive” on page 89.
11. Reinstall the rear I/O assembly. See “Installing a rear I/O assembly” on page
109.
12. Close the system board shielding. See “Closing the system board shielding”
on page 86.
13. Reinstall the rear I/O shielding. See “Installing the rear I/O shielding” on
page 87.
14.
Go to “Completing the FRU installation.”
Installing a computer wall mount
For information about how to install a computer wall mount, see the
documentation that came with your computer wall mount.
Note: When installing a computer wall mount, make sure that you leave at least a
60 mm (2.36 inches) space between the wall and your computer for easy
access to the connectors on the rear I/O assembly.
Completing the FRU installation
After replacing FRUs, you need to install any removed parts, replace the computer
cover, and reconnect any cables, including telephone cords and power cords. Also,
depending on the FRU that is replaced, you might need to confirm the updated
information in the Setup Utility program.
Note: When the power cord is first plugged in, the computer might appear to turn
on for a few seconds and then turn off. This is a normal sequence for the
computer to initialize.
Installing a computer cover
To install a computer cover, do the following:
1. Replace the two rubber tabs you had previously removed.
2.
Replace the cover so that the slots on the top edge of the computer cover align
with the tabs on the computer.
3. Lower and press one end of the computer cover into place first and then close
the other end until the computer cover fits snugly on the computer.
Chapter 8. Replacing FRUs
125