Lenovo ThinkCentre 7515 Maintenance Manual page 149

4. Remove the heat sink and fan assembly from the system board by pivoting the
lever 1 that secures the heat sink and fan assembly until it is fully in the up
position. Carefully lift the heat sink and fan assembly off the system board.
Notes:
a. You might have to gently twist the heat sink and fan assembly to free it
from the microprocessor.
b. Do not touch the thermal grease while handling the heat sink and fan
assembly.
Figure 59. Removing the heat sink and fan assembly
5. Place the new heat sink and fan assembly into position and lower the lever to
secure the new heat sink and fan assembly.
6. Connect the new heat sink and fan assembly cable to the microprocessor fan
connector on the system board.
7. Go to "Completing the FRU replacement" on page 155.
Chapter 9. Replacing FRUs - 607 computers
143