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Dell OptiPlex 3020–Mini Tower Owner's Manual

Removing the System Board

  1. Follow the procedures in Before Working Inside Your Computer .
  2. Remove the:
    1. cover
    2. memory
    3. expansion card(s)
    4. heatsink assembly
    5. processor
  3. Disconnect all the cables connected to the system board.
  4. Perform the following steps as shown in the illustration:
    1. Disconnect the 8–pin power cable.
    2. Press the 4–pin power cable [1].
    3. Disconnect the 4-pin power cables from the system board [2].
    Figure displaying how to remove the screws that secure the system board to the chassis.
  5. Remove the screws that secure the system board to the computer.
    Figure displaying how to remove the screws that secure the system board to the chassis.
  6. Tilt the system board at 45–degrees, and then lift the system board out of the computer.
    Figure displaying how to lift system board to the chassis.
  7. Lift the system board out of the computer.
    Figure displaying how to lift system board to the chassis.

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