Lenovo IdeaCentre AIO 3 Hardware Maintenance Manual page 78

Before you start, read Chapter 1 "Important safety information" on page 1 and print the following
instructions.
Before you open the computer cover, turn off the computer and wait several minutes until the computer is
cool.
Replacement procedure
1. Turn off the computer and remove all connected devices and cables.
2. Remove the computer stand cover. See "Computer stand cover" on page 60.
3. Remove the computer stand. See "Computer stand" on page 60.
4. Remove the optical drive. See "Optical drive" on page 61.
5. Remove the computer cover. See "Computer cover" on page 65.
6. Remove the system board frame. See "System board frame" on page 71.
7. Disengage the latch.
8. Remove the coin-cell battery.
9. Install the new coin-cell battery and secure it with the latch.
10. Reinstall the removed parts in reverse order of the removal steps mentioned above.
11. Reconnect all disconnected cables to the computer and reconnect the power cord to the electric outlet.
To dispose of the coin-cell battery, refer to the "Lithium coin-cell battery notice" in the Safety and Warranty
Guide.
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IdeaCentre AIO 3 Hardware Maintenance Manual