Heat Sink; Removing The Heatsink Assembly - Dell Latitude 7420 Service Manual

3. Connect the speaker cable to the speaker board and reroute the speaker cable into its routing channel over the upper right
side of the battery.
4. Connect the battery cable to the system board.
Next steps
1. Install the base cover.
2. Install the microSD card.
3. Follow the procedure in

Heat sink

Removing the heatsink assembly

Prerequisites
1. Follow the procedure in
2. Remove the microSD
3. Remove the base cover.
About this task
The following images indicate the location of the heatsink assembly and provide a visual representation of the removal
procedure.
Steps
1. Disconnect the fan cable from the system board.
2. Remove the two (M2x2.5) screws on the fan case and the four (M2x2.5) screws (in reverse order, 4->3->2->1) that secure
the heatsink to the computer.
3. Lift the heatsink assembly from the computer.
32 Removing and installing components
after working inside your
before working inside your
card.
computer.
computer.