Lenovo ThinkCentre Edge 91z Hardware Maintenance Manual (HMM) for ThinkCentre - Page 107

Locate the rear I/O assembly. See FRU locations on Remove the two screws

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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 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 95. 4. Locate the rear I/O assembly. See "FRU locations" on page 86. 5. Remove the two screws 1 that secure the rear I/O assembly. Figure 22. Removing the two screws that secure the rear I/O assembly Chapter 8. Replacing FRUs 101

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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 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 95.
4. Locate the rear I/O assembly. See “FRU locations” on page 86.
5. Remove the two screws
1
that secure the rear I/O assembly.
Figure 22. Removing the two screws that secure the rear I/O assembly
Chapter 8
.
Replacing FRUs
101