Replacing The System Board - Lenovo ThinkCentre A70 7099 Hardware Maintenance Manual

Figure 29. Removing the front audio and USB assembly
10. Reinstall the front bezel. See "Removing and reinstalling the front bezel" on
11. To complete the replacement, go to "Completing the parts replacement" on

Replacing the system board

This section provides instructions on how to replace the system board.
5. Note the front audio and USB assembly cable routing and remove the screw
that secures the front audio and USB assembly. Then, remove the front audio
and USB assembly from the chassis.
6. Route the cables of the new front audio and USB assembly through the hole
in the chassis.
7. Position the new front audio and USB assembly to the chassis so that the
screw hole in the new front audio and USB assembly is aligned with the
corresponding hole in the chassis.
8. Install the screw to secure the new front audio and USB assembly in place.
9. Connect the new front audio and USB assembly cables to the system board.
See "Locating parts on the system board" on page 86.
page 90.
page 114.
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://www.lenovo.com/support
Chapter 8. Replacing FRUs - Tower computers
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