Replacing The Microprocessor - Lenovo ThinkStation S20 4157 Hardware Manual

11. Go to "Completing the FRU replacement" on page 131.

Replacing the microprocessor

CAUTION:
The heat sink and microprocessor might be very hot. Turn off the computer and
wait three to five minutes to let the computer cool before opening the computer
cover.
This section provides instructions on how to replace the microprocessor.
To replace the microprocessor:
Attention
Do not open your computer or attempt any repair before reading and understanding the
"Important safety information" in the ThinkStation Safety and Warranty Guide that came
with your computer. To obtain a copy of the ThinkStation Safety and Warranty Guide, go to:
http://www.lenovo.com/support
1. Open the computer cover. See "Removing the cover" on page 96.
2. Place the computer on its side to help make the system board more accessible.
3. Remove the heat sink from the system board. See "Replacing the heat sink"
on page 109.
4. To remove the microprocessor 3 from the system board, lift the small handle
1 and open the retainer 2 .
Important
Touch only the sides of the microprocessor. Do not touch the gold
contacts on the bottom.
5. Lift the microprocessor straight up and out of the socket.
Chapter 10. Replacing FRUs - Menorca Computers
111