Dell Latitude 7210 2-in-1 Service Manual page 41

7. To remove the heat-sink assembly:
a. Remove the M2x2.5 screws that secure the heat-sink fan to the system board [1].
b.
c. In sequential order (as indicated on the heat sink), loosen the captive screws that secure the heat sink to the system
board [2].
NOTE: Remove the screws in the order of the callout numbers [1, 2, 3, 4] as graphically printed on the heat sink.
d. Lift the heat-sink assembly from the tablet [3].
Disassembly and reassembly 41