Replacing The Rear I/O Assembly - Lenovo ThinkCentre M73z Hardware Maintenance Manual

What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to "Completing the parts replacement" on page 118.

Replacing the rear I/O assembly

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 "Safety information" on page 1.
This section provides instructions on how to replace the rear input/output (I/O) assembly.
To replace the rear I/O assembly, 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 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 stand. See "Removing and installing the computer stand" on page 73.
4. Remove the computer cover. See "Removing the computer cover" on page 76.
5. Remove the system board shield. See "Removing and installing the system board shield" on page 88.
6. Remove the five screws
board. Then, lift the rear I/O assembly as shown.
Figure 25. Removing the five screws that secure the rear I/O assembly
1 , and then gently twist the rear I/O assembly to free it from the system
.
Chapter 8 Replacing FRUs
89