Lenovo ThinkCentre A61e - Manual (Page 23)

3. Remove the four screws securing the heat sink to the retention module on the
system board.
4. Lift the failing heat sink off the system board.
5. Position the new heat sink on the retention module so that the four screws are
aligned with the posts on the system board. Tighten the four screws to the heat
sink to the system board.
6. Go to Chapter 4, “Completing the parts replacement,” on page 27.
Figure 8. Removing the heat sink held in place by screws
Figure 9. Replacing the heat sink with screws
Chapter 3. Installing options and replacing hardware 15