Lenovo ThinkCentre M725s User Manual And Hardware Maintenance Manual page 65

Figure 97. Reinstalling the computer cover
4. Reinstall external options. See "Replacing external options" on page 14.
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