Replacing The System Board - Lenovo ThinkCentre M77 Hardware Maintenance Manual

12. Install the screw to secure the cover presence switch to the chassis.
Figure 93. Reinstalling the cover presence switch
13. To reinstall the front bezel, align the three tabs on the front bezel with the corresponding holes in the
chassis and pivot the front bezel inwards until it snaps into position.
14. To complete the installation or replacement, go to "Completing the parts replacement" on page 160.

Replacing the system board

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://support.lenovo.com
This section provides instructions on how to replace the system board.
CAUTION:
The heat sink and microprocessor might be very hot. Turn off the computer and wait three to five
minutes to let the computer cool before opening the computer cover.
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ThinkCentre Hardware Maintenance Manual