Filter
Top Products
Figure17. Installing the optical drive
7. Connect the signal cable and the power cable to the rear of the new optical drive.
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 84.
Replacing the heat sink
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 heat sink.
CAUTION:
The heat sink might be very hot. Turn off the computer and wait three to ve minutes to
let the computer cool before removing the computer cover.
To replace the heat sink, do the following:
1. Remove the computer cover. See “Removing the computer cover” on page 68.
2. Locate the heat sink. See “Locating components” on page 66.
3. Remove the four screws that secure the heat sink. Then, lift the heat sink off the system board.
Notes:
a. Carefully remove the four screws from the system board to avoid any possible damage. The four
screws cannot be removed from the heat sink.
b. You might have to gently twist the heat sink to free it from the microprocessor.
c. When handling the heat sink, do not touch the thermal grease on the bottom of the heat sink.
76 Hardware Maintenance Manual