Lenovo 4163B2U, User Manual

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Figure 38. Installing the front fan assembly
10. Connect the new front fan assembly cable to the system fan connector on the system board. See
“Locating parts on the system board” on page 9.
11. Reinstall the heat sink fan duct. See Figure 26 “Installing the heat sink fan duct” on page 30.
12. Reinstall the hard disk drive. See “Replacing the hard disk drive” on page 34.
What to do next:
• To work with another piece of hardware, go to the appropriate section.
• To complete the replacement, go to “Completing the parts replacement” on page 40.
Replacing the keyboard
Attention:
Do not open your computer or attempt any repair before reading and understanding the “Important safety information”
in the
ThinkCentre Safety and Warranty Guide that came with your computer. To obtain a copy of the ThinkCentre
Safety and Warranty Guide , go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the keyboard.
To replace the keyboard, do the following:
1. Remove all media from the drives. Then, turn off all attached devices and the computer.
2. Disconnect all power cords from electrical outlets.
3. Disconnect the old keyboard cable from the computer.
4. Connect a new keyboard to the appropriate connector on the computer. Your keyboard might be
connected to a PS/2 keyboard connector
1
or a USB connector
2
. Depending on where you want
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ThinkCentre User Guide