OptiPlex 3050 Tower Owner's Manual

Removing system board

1. Follow the procedure in Before working inside your computer.
2. Remove the:
   1. cover
   2. bezel
3. Open the front panel door.
4. Remove the:
   1. heat sink assembly
   2. processor
   3. expansion card
   4. optional M.2 PCIe SSD
   5. SD card reader
   6. memory module
   7. VGA daughter board
5. Disconnect the following cables:
   1. system fan [1]
   2. intrusion switch [2]
   
6. Disconnect the following cables:
   1. PSU [1]
   2. power switch [2]
   3. optical drive and hard drive [3]
   
7. Disconnect the following cables:
   1. speaker [1]
   2. PSU [2]
   3. hard drive [3]
   4. power distribution for optical drive and hard drive [4]
   
8. Remove the screws that secure the system board to the computer.
   
9. Slide and lift the system board away from the computer.