Dell Precision 7920 Tower Owner's Manual

Removing the front system fan assembly

1. Follow the procedure in Before working inside your computer.
2. Remove the following:
   1. side cover
   2. front bezel
   3. air shroud
   4. PCIe card holder
3. To remove the system fan assembly:
   1. Remove the single screw on the intrusion switch module [1], and lift it away from the system fan chassis [2].
   2. Disconnect the internal chassis speaker cable from the connector, unroute it from the clip on the system fan chassis [3], and lift it away from chassis [4].
      
4. Disconnect the four system fan cables from the connectors on the system board.
   CAUTION:Do not pull the connector by the cable wires. Instead, disconnect the cable by pulling on the connector end. Pulling the cable wires may loosen them from the connector.
   
5. Remove the two screws securing the fan chassis to the system [1], and the two screws securing the fan chassis in front of the system [2].
   
6. Rotate and lift the fan assembly away from the system.