Skip to main content
  • Place orders quickly and easily
  • View orders and track your shipping status
  • Create and access a list of your products
  • Manage your Dell EMC sites, products, and product-level contacts using Company Administration.

Dell Precision Tower 3420 Owner's Manual

Removing the system board

  1. Follow the procedure in Before Working Inside Your Computer.
  2. Remove the:
    1. cover
    2. front bezel
    3. hard drive
    4. optical drive
    5. heat sink fan cover
    6. heat sink
    7. system fan
    8. memory module
    9. PCIe SSD
  3. Disconnect the cables from the system board.
    Figure displaying disconnecting the cable from the system.
  4. To remove the system board:
    1. Remove the screws that secure the system board to the computer [1].
    2. Slide the system board toward the front of the computer and lift it from the computer [2].
      Figure displaying removing the system board.

Rate this content

Accurate
Useful
Easy to understand
Was this article helpful?
0/3000 characters
  Please provide ratings (1-5 stars).
  Please provide ratings (1-5 stars).
  Please provide ratings (1-5 stars).
  Please select whether the article was helpful or not.
  Comments cannot contain these special characters: <>()\