Replacing The Keyboard Or Mouse - Lenovo ThinkCentre M83 Hardware Maintenance Manual

14. Reinstall the system fan. See "Replacing the system fan" on page 276.
15. Reinstall the Wi-Fi card module if you have removed it. See "Replacing the Wi-Fi card module" on
page 266.
16. Install all memory modules removed from the failing system board onto the new system board. See
"Installing or replacing a memory module" on page 262.
17. Reinstall the hard disk drive assembly. See "Installing or removing the hard disk drive assembly" on
page 251.
18. Refer to your record to connect cables to the new system board. You also can refer to "Locating
parts on the system board" on page 90 to help you locate the connectors on the system board and
connect cables.
19. To complete the replacement, go to "Completing the parts replacement" on page 286.
The failing system board must be returned with a microprocessor socket cover to protect the pins during
shipping and handling.
To install the microprocessor socket cover, do the following:
1. After you have removed the microprocessor from the failing system board, close the microprocessor
retainer and then put the lever to the locked position to secure the retainer in place.
2. Note the orientation of the socket cover, and install one side of the socket cover into the microprocessor
socket. Carefully press the other side of the socket cover downward until the socket cover snaps
into position.
Note: Your microprocessor socket and cover might look slightly different from the illustration.
Figure 288. Installing the microprocessor socket cover
3. Carefully check the four corners of the socket cover to ensure that the cover is secured.
4. Follow any additional instructions that are included with the replacement part you received.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the installation or replacement, go to "Completing the parts replacement" on page 286.

Replacing the keyboard or mouse

Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter
1 "Safety information" on page 1.
This section provides instructions on how to replace the keyboard or mouse.
To replace the keyboard or mouse, do the following:
.
Chapter 10 Replacing FRUs (machine types: 10A4, 10A5, 10AA, 10AB, 10DF, 10DG, 10DH, 10DJ, 10E8, 10E9, 10EA, and 10EB)
285