Lenovo THINKCENTRE 6019 Hardware Maintenance Manual page 137

3. Locate the microprocessor fan connector on the system board. See "System
board connectors" on page 117.
4. Disconnect the microprocessor fan cable from the system board.
5. Remove the heat sink 1 from the system board by pivoting the lever 2
securing the heat sink until it is fully in the up position. Lift the heat sink off
of the system board.
6. Release the lever 3 securing the microprocessor 2 then pivot the
microprocessor retainer 1 until it is fully open.
Chapter 9. Replacing FRUs - Ultra SFF Desktop computers
131