19.Pivot the microprocessor retainer 3 to the closed position and rotate the locking lever 2 to secure the microprocessor 1. Make sure the locking lever is engaged with the retainer tab when securing the microprocessor.
20.Align the beveled corners of the heat sink and the mounting bracket. Then position the heat sink 2 on the heat sink mounting bracket. Lower the lever 1 to secure the heat sink.