1.Remove any media (diskettes, CDs, or tapes) from the drives, shut down the computer, and turn off all attached devices.
2.Unplug all power cords from electrical outlets.
3.Locate the connector for the keyboard. See “Locating connectors on the rear of the computer” on page 3 and “Locating controls and connectors on the front of the computer” on page 2.
Your keyboard might be connected to the standard keyboard connector 1 at the rear of the computer or to a USB connector 2 at either the front or rear of the computer. 
4.Disconnect the failing keyboard cable from the computer and connect the new keyboard cable to the appropriate connector.
5.Go to “Completing the installation” on page 33.
Replacing the mouse
Attention:
Do not remove the computer cover or attempt any repair before reading the “Important safety information” in the Quick Reference that was included with your computer or in the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick Reference or HMM, go to http://www.ibm.com/pc/support.
1.Remove any media (diskettes, CDs, or tapes) from the drives, shut down the computer, and turn off all attached devices.
2.Unplug all power cords from electrical outlets.
3.Locate the connector for the mouse. See “Locating connectors on the rear of the computer” on page 3 and “Locating controls and connectors on the front of the computer” on page 2.
Your mouse might be connected to the standard mouse connector 1 at the rear of the computer or to a USB connector 2 at either the front or rear of the
computer. 
4.Disconnect the failing mouse cable from the computer and connect the new mouse cable to the appropriate connector.
5.Go to “Completing the installation” on page 33.
Replacing the internal speaker
Attention:
Do not remove the computer cover or attempt any repair before reading the “Important safety information” in the Quick Reference that was included with your computer or in the Hardware Maintenance Manual (HMM) for the computer. To obtain copies of the Quick Reference or HMM, go to http://www.ibm.com/pc/support.