Dell Vostro 3267 Owner's Manual page 37

d. 3.5-inch hard drive chassis
e. optical drive
3. Follow the steps to remove the heat sink assembly:
a. Disconnect the heat sink assembly cable from the system board [1].
b. Remove the screws to loosen the processor fan and the heat sink [2].
c. Remove the screws securing the heatsink assembly in a sequential order [1,2,3,4].
d. Lift the heat sink and remove it from the chassis [3].
Disassembly and reassembly 37