Dell Latitude 5420 Rugged Service Manual

Removing the PCIe Heatsink fan assembly

1. Follow the procedure in Before working inside your computer.
2. Remove the:
   1. Batteries
   2. Bottom chassis cover
3. Disconnect the fan cable [1], loosen the four 'M2*3' screws from fan case [2].
   
4. Loosen the seven 'M2.5*5' screws [1] from heat sink pipe and remove the PCIe heatsink assembly from the computer [2].
   
5. Remove the four M2*3 screws [1] to separate the heatsink from the fan [2].