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Remove the system board

Follow instructions in this section to remove the system board.

Attention
  • Removing and installing this component requires trained technicians. Do not attempt to remove or install it without proper training.
  • When replacing the system board, always update the server with the latest firmware or restore the pre-existing firmware. Make sure that you have the latest firmware or a copy of the pre-existing firmware before you proceed.

  • Go over Installation Guidelines to ensure that you work safely.

  • Turn off the server and peripheral devices and disconnect the power cords and all external cables (see Power off the server).

  • If the server is installed in a rack, slide the server out on its rack slide rails to gain access to the top cover, or remove the server from the rack.

Procedure

  1. Make preparations for this task.
    1. Record all system configuration information, such as Lenovo XClarity Controller (XCC) IP addresses, vital product data, and the machine type, model number, serial number, Universally Unique Identifier, and asset tag of the server.
    2. Save the system configuration to an external device with Lenovo XClarity Essentials.
    3. Save the system event log to external media.
    4. Remove the top cover (see Remove the top cover).
    5. Remove both PCIe riser cages or fillers, the chassis air baffle, and the PCIe expansion tray (see Remove a 4U PCIe riser cage, Remove the chassis air baffle, and Remove the 4U PCIe expansion tray).
    6. Remove the fan cage assembly (see Remove the fan cage assembly).
    7. Remove the system board air baffle (see Remove the system board air baffle) or the processor and memory expansion tray and the expansion tray air baffle (see Remove the processor and memory expansion tray).
    8. Disconnect all the cables from the system board. Make a list of each cable as you disconnect it and use it as a checklist after installing the new system board.
    9. Remove the PCIe riser assembly (see Remove the PCIe riser assembly).
    10. Remove all the adapters from the system board (see Remove an adapter and Remove the OCP Ethernet adapter).
    11. Label the slot number on each memory module, remove all the memory modules from the system board, and set them aside on a static-protective surface for reinstallation (see Remove a memory module).
      Important
      It is advised to print out the layout of memory module slots for reference.
    12. Remove the power backplane (see Remove the power backplane).
    13. Remove both the PHMs that are installed on the system board (see Install a processor and heat sink).
  2. Disengage the system board.
    Figure 1. Disengaging the system board


    • Pull the captive screw up to release the system board.
    • Grasp the blue handle, and slide the system board back slightly to disengage it from the chassis.
    Note
    This handle only serves the purpose of removing system board. Do not attempt to lift the whole server with it.
  3. Rotate the longer side of the system board up, and remove the board from the server.
    Figure 2. Removing the system board


After this task is completed

  • If you are instructed to return the component or optional device, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.

    Important
    Before returning the system board, make sure that you install the processor socket dust covers from the new system board. To replace a processor socket dust cover:

    1. Take a dust cover from the processor socket assembly on the new system board, and orient it correctly above the processor socket assembly on the removed system board.

    2. Gently press down the dust cover legs to the processor socket assembly, pressing on the edges to avoid damage to the socket pins. You might hear a click on the dust cover is securely attached.

    3. Make sure that the dust cover is securely attached to the processor socket assembly.

  • If you are planning to recycle the system board, follow the instructions in Disassemble the system board for recycle for compliance with local regulations.

Demo video

Watch the procedure on YouTube

Disassemble the system board for recycle​

Follow the instructions in this section to disassemble the processor and memory expansion tray before recycle.

About this task

Attention

  • Go over Installation Guidelines to ensure that you work safely.

  • Turn off the server and peripheral devices and disconnect the power cords and all external cables (see Power off the server).

  • If the server is installed in a rack, slide the server out on its rack slide rails to gain access to the top cover, or remove the server from the rack.

  1. Make preparations for this task.
    1. Remove the system board from the server (see Remove the system board).
    2. Refer to local environmental, waste or disposal regulations to ensure compliance.
  2. Remove the following components as illustrated:

    • 22 slotted screws

    • Two standoffs (with 12 mm wrench)

    • One plunger (with 11 mm and 16 mm wrench)

    Figure 3. Disassembling the system board


  3. Separate the system board from the supporting sheet metal.

After this task is completed

Recycle the unit in compliance with local regulations.