Lenovo ThinkCentre 0401 Hardware Maintenance Manual page 106

4. Reinstall the four screws that attach the LCD panel to the main bracket.
5. Reinstall all the 11 screws that secure the main bracket to the front bezel.
6. Reinstall the optical drive. See "Installing an optical drive" on page 92.
7. Reinstall the heat sink assembly. See "Installing the microprocessor and heat
8. Close the system board shielding. See "Closing the system board shielding" on
9. Go to "Completing the FRU installation" on page 125.
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Hardware Maintenance Manual
sink assembly" on page 103.
page 86.