Opening The System Board Shield Window - Lenovo ThinkCentre Hardware Maintenance Manual

7. Remove the two screws
Figure 33. Removing the card reader
8. To reinstall the card reader, align the screw holes in the new card reader with those in the computer, and
then install the two screws to secure the card reader.
9. Connect the card reader cable to the new card reader.
10. Reinstall the system board shield. See "Removing and reinstalling the system board shield" on page 98.
11. Go to "Completing the parts replacement" on page 120.

Opening the system board shield window

Attention
Do not open your computer or attempt any repair before reading and understanding the "Important safety
information" in the ThinkCentre Edge Safety and Warranty Guide that came with your computer. To obtain a
copy of the ThinkCentre Edge Safety and Warranty Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to open and close the system board shield window.
To open and close the system board shield window, 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 91.
4. Locate the system board shield window. See "FRU locations" on page 82.
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ThinkCentre Hardware Maintenance Manual
1 that secure the card reader, and then lift the card reader out of the computer.