Replacing the heat sink
Attention
Do not open your computer or attempt any repair before reading the “Important safety
information” in the Safety and Warranty Guide that was included with your computer. To
obtain a copy of the Safety and Warranty Guide, go to the Support Web site at
http://www.lenovo.com/support.
This section provides instructions on how to replace the heat sink.
1. Remove the computer cover. See “Removing the cover” on page 12.
2. Lay the computer on its side.
3. Locate the heat sink. See “Identifying parts on the system board” on page 9.
4. Disconnect the heat sink and the fan assembly cable from the microprocessor
fan connector on the system board.
5. Remove the four screws 1 securing the heat sink and fan assembly to the
system board.
Note: You might have to gently twist the heat sink to free it from the
microprocessor.
6. Lift the failing heat sink and fan assembly off the system board.
Figure 20. Removing the heat sink and fan assembly
Chapter 3. Installing options and replacing hardware 27
