Dell Latitude 5401 Service Manual page 40

Steps
1. Align the screw hole on the heatsink with the screw hole on the heatsink fan.
2. Replace the single (M2x3) screw to secure the heatsink fan to the heatsink.
3. Locate the heatsink assembly slot on your computer.
4. Align and place the heatsink assembly into the slot.
5. Replace the two (M2x3) screws to secure the fan section on the heatsink assembly to the system board.
NOTE: Replace the screws as per the callout on the heatsink.
6. Replace the six (M2x3) screws to secure the heatsink assembly to the system board.
7. Connect the heatsink fan cable to the connector on the system board.
Next steps
1. Install the inner frame
2. Install the battery.
3. Install the base cover.
4. Follow the procedure in
40 Disassembly and reassembly
After working inside your computer.