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

OptiPlex 5000 Tower Service Manual

Removing the system board

Prerequisites

  1. Follow the procedure in before working inside your computer.
    NOTE:Your computer’s Service Tag is stored in the system board. You must enter the Service Tag in the BIOS setup program after you replace the system board.
    NOTE:Replacing the system board removes any changes that you have made to the BIOS using the BIOS setup program. You must make the appropriate changes again after you replace the system board.
    NOTE:Before disconnecting the cables from the system board, note the location of the connectors so that you can reconnect the cables correctly after you replace the system board.
  2. Remove the side cover.
  3. Remove the front bezel.
  4. Remove the fan duct.
  5. Remove the memory module.
  6. Remove the WLAN.
  7. Remove the M.2 2230 SSD/M.2 2280 SSD.
  8. Remove the coin-cell battery.
  9. Remove the graphics card.
  10. Remove the speaker.
  11. Remove the intrusion switch.
  12. Remove the processor fan and heat-sink assembly.
  13. Remove the processor.

About this task

The following image indicates the connectors on your system board.

System board layout

  1. ATX CPU power connector
  2. ATX CPU power connector
  3. Memory module connectors
  4. Power button connector
  5. SD card reader connector
  6. System power connector
  7. SATA power cable connector
  8. Coin-cell battery
  9. SATA3 connector (white)
  10. SATA 1connector (black)
  11. SATA 2 connector (black)
  12. M.2 WLAN connector
  13. SATA0 connector (blue)
  14. PCIe x16 (Slot2)
  15. PCIe x4 (Slot4)
  16. PCIe x1 (Slot1/2)
  17. PCIe x1 (Slot1/2)
  18. M.2 PCIe SSD connector
  19. Type-C connector
  20. Processor socket
  21. Keyboard and Mouse serial connector
  22. Video connector
  23. Intrusion switch connector

The following images indicate the location of the system board and provide a visual representation of the removal procedure.

Removing the system board

Removing the system board

Removing the system board

Removing the system board

Steps

  1. Remove the two (#6-32) screws that secure the front I/O-bracket to the chassis.
  2. Slide and remove the front I/O-bracket from the chassis.
  3. Disconnect the power and HDD cables that are connected to the system board and unroute them from the routing guides on the chassis.
  4. Remove the eight (#6-32) screws that secure the system board to the chassis.
  5. Remove the (M2x4) screw that secures the system board to the chassis.
  6. Lift the system board at an angle and remove the system board off the chassis.

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: <>()\