Dell OptiPlex 5270 All-in-One Service Manual

Removing the power supply unit fan -PSU fan

1. Follow the procedure in Before working inside your computer.
2. Remove the following components:
   1. Stand
   2. Back cover
   3. System board shield
   4. Base cover
3. To disconnect the PSU fan cable:
   1. Unroute the power supply cables from the retention clips in the PSU fan.
   2. Disconnect the PSU fan cable form the socket on the system board [1].
   3. Unroute the PSU fan cable from the retention tab [2].
      
4. To disconnect the PSU fan:
   1. Remove two (M3x5) screws that secure the PSU fan to the display assembly base [1].
   2. Lift the PSU fan away from the chassis [2].