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Dell Precision 5820 Tower Owner's Manual

Removing system board

  1. Follow the procedure in Before working inside your computer.
  2. Remove the:
    1. side cover
    2. air shroud
    3. expansion card
    4. memory module
    5. heat sink and CPU fan assembly
    6. front bezel
    7. ODD
    8. 5.25 ODD bracket
    9. system fan
    10. PCIe card holder
  3. To remove the system board:
    1. To remove the system fan fixed bracket, remove the screw [1] that secure the fixed bracket to the system board.
    2. Lift the system fan fixed bracket from the system board [2].
      Shows the removal of the fixed fan bracket and UPI bracket from the system board
    3. Disconnect the following cables from the system board connectors:
      • audio cable [1]
      • power cable [2]
      • cable holder [3]
      • power control cable [4]
      • 24 Pin power cable [5]
      • front I/O panel [6]
      Displays removal of the cables from the system board
    4. Disconnect the following cables:
      • SATA cables and ODD cables [1]
      • USB 3.1 cable [2]
      • Front system fan cable
      • Flex0 and Flex1 hard drive data cable
      NOTE:Do not pull the connector by the cable wires . Instead, disconnect the cable by pulling on the connector end. Pulling on the cable wires may loosen them from the connector.
      Displays removal of the cables from the system board
    5. Remove the screws that secure the system board to the chassis.
      Displays removal of the cables from the system board
    6. Slide the system board towards HDD bracket module to detach it from the system.
      Displays removal of the system board
    7. Lift the system board up to remove it from the chassis.
      Displays removal of the system board

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