OptiPlex XE3 Tower Service Manual

Removing system board

1. Follow the procedure in Before working inside your computer.
2. Remove the:
   1. side cover
   2. front bezel
3. Open the front panel door.
4. Remove the:
   1. heat sink fan
   2. heat sink
   3. processor
   4. expansion card
   5. M.2 PCle SSD
   6. SD card reader
   7. memory module
5. Disconnect the following cables from the system board:
   1. PSU [1]
   2. power cable and SATA cable [2]
   3. speaker [3]
   4. PSU [4]
   5. power distribution for optical drive and hard drive [5]
   
6. To remove the system board:
   1. Remove the screws (8) that secure the system board to the computer chassis.
      
   2. Slide and lift the system board away from the computer [1, 2].