Dell Vostro 3480 - Installing the Heatsink - Discrete

Steps
1 Loosen the four captive screws that secure the heatsink to the system board [1].
NOTE: Loosen the screws in the order of the callout numbers [1, 2, 3, 4] as indicated on the heatsink.
2 Remove the three (M2x3) screws that secure the heatsink to the system board [2].
3 Lift the heatsink o the system board [3].
Installing the heatsink - discrete
Steps
1 Place the heatsink on the system board and align the screw holes on the heatsink with the screw holes on the system board [1].
2 Replace the three (M2x3) screws that secure the heatsink to the system board [2].
3 In sequential order (as indicated on the heatsink), tighten the four captive screws that secure the heatsink to the system board [3].
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Removing and installing components