Lenovo 3000 J 7387 Hardware Maintenance Manual page 132

11. Remove the four screws 1 securing the heat sink and fan assembly to the
12. Lift the heat sink and fan assembly off the failing system board. Lay the heat
13. Lift the small handle 3 and open the retainer 1 .
126
Lenovo 3000 J Series
system board.
sink on its side so that the thermal grease does not come in contact with
anything.