Replacing The System Board - Lenovo ThinkCentre E73z Hardware Maintenance Manual

7. Remove the screw that secures the integrated camera to the front bezel to remove the integrated
camera from the computer.
Figure 39. Removing the integrated camera
8. To reinstall the integrated camera, position the new integrated camera and align the screw holes in the
new integrated camera with those in the front bezel.
9. Install the screw to secure the new integrated camera to the front bezel.
10. Route the new integrated camera cable, and then connect the integrated camera cable to the system
board. See "Locating parts on the system board" on page 69.
11. Reinstall the system board shield. See "Removing and reinstalling the system board shield" on page 83.
12. Go to "Completing the parts replacement" on page 108.

Replacing the system board

Attention: Do not open your computer or attempt any repair before reading and understanding the
"Important safety information" on page 1
This section provides instructions on how to replace the system board.
To replace the system board, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or other flat surface. Hold the sides of your computer and
gently lay it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See "Removing the computer cover" on page 75.
4. Remove the system board shield. See "Removing and reinstalling the system board shield" on page 83.
5. Locate the system board in the computer. See "Locating major FRUs and CRUs" on page 66.
6. Remove the heat sink assembly. See "Replacing the heat sink assembly" on page 90.
7. Remove the microprocessor. See "Replacing the microprocessor" on page 91.
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Chapter 9 Replacing FRUs
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