Dell Vostro 5481 Service Manual

Removing the system board

1. Follow the procedure in Before working inside your computer.
2. Remove the:
   1. base cover
   2. battery
   3. system fan
   4. memory module
   5. WLAN
   6. SSD
   7. heatsink
3. To remove the system board:
   1. Peel the adhesive tape from the IO board connector [1].
   2. Lift the connector latch and disconnect the IO board cable from the connector on the system board [2].
   3. Peel the adhesive tapes from the display assembly connector [3].
   4. Lift the connector latch and disconnect the display assembly cable from the connector on the system board [4].
      
   5. Remove the following cables:
      • coin-cell battery cable [1]
      • hard drive cable [2]
      • touchpad cable [3]
      • power-adapter cable [4]
      • speaker cable [7]
      • keyboard cable [8]
      • keyboard backlight cable (optional) [9]
   6. Remove the two (M2x3) screws that secure the USB Type-C port bracket to the system board [5].
   7. Lift the USB Type-C port bracket away from the system [6].
      
   8. Remove the three (M2x2 Big head) screws that secures the system board to the palmrest and keyboard assembly [1].
   9. Lift the system board away from the system [2].