Lenovo ThinkCentre M920z User Manual And Hardware Maintenance Manual page 63

3. Reinstall the computer cover.
Figure 100. Reinstalling the computer cover
4. Reinstall the computer stand. See "Replacing the computer stand" on page 16.
5. Place the computer in an upright position.
6. If a locking device is available, use it to lock the computer.
7. Reconnect the external cables and power cords to the corresponding connectors on the computer.
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Chapter 4 Replacing hardware