Precision 5540 Service Manual

Removing the Fans

1. Follow the procedures in Before Working Inside Your Computer.
2. Remove the:
   1. base cover
   2. battery
3. Perform the following steps to remove the left system fan:
   1. Release the Mylar tape that secures the cable to the system board [1].
   2. Disconnect the fan cable from the system board [2]
   3. Remove the M2x4 (2) screws that secure the fan to the system board [3].
   4. Lift the fan away from the computer [4]
   
4. Perform the following steps to remove the right system fan:
   1. Remove the M2x4 (2) screws and lift the metal bracket that holds the fan to the system board [1].
   2. Lift the metal bracket that secures the DisplayPort over Type-C [2].
      
   3. Disconnect the display cable from the system board [1].
   4. Un-route the display cable from the restraints [2]
   5. Disconnect the system fan cable from the system board [3].
   6. Remove the M2x4 (2) screws that secure the system fan to the system board [4].
   7. Lift the fan away from the laptop [5].