Hardware Maintenance Manual
3. Position the computer cover on the chassis so that the rail guides on
the bottom of the computer cover engage the rails. Then, push the
computer cover closed until it snaps into position.
4. Reconnect the external cables and power cords into the computer.
Refer to "Locating connectors on the rear of the computer".
5. To update your configuration settings, refer to "Starting the Setup
Utility" in the User Guide or in the Hardware Maintenance Manual.
In most areas of the world, Lenovo requires the return of the
defective CRU. Information about this will come with the CRU or will
come a few days after the CRU arrives.