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Remove the system board

Follow instructions in this section to remove the system board.

About this task

To avoid potential danger, read and follow the following safety statements.
  • S002
    disconnect all power
    CAUTION
    The power-control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.
  • S012
    hot surface
    CAUTION
    Hot surface nearby.
  • S017
    moving parts
    CAUTION
    Hazardous moving fan blades nearby. Keep fingers and other body parts away.
Attention

  • Read the 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 in a rack, remove it from the rack.

  • Remove any locking device that secures the server cover, such as a Kensington lock or a pad lock.

Procedure

  1. Make preparations for this task.
    1. Record all system configuration information, such as Lenovo XClarity Controller 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 server cover (see Remove the server cover).
    5. Remove the front and rear system fans (see Remove the front system fan and Remove the rear system fan).
    6. Remove the M.2 boot adapter (see Remove the M.2 boot adapter).
    7. Remove the PCIe adapters (see Remove a PCIe adapter).
    8. Label the slot number on each memory module, then 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).
    9. Remove the heat sink and fan assembly (see Remove the heat sink and fan module).
    10. Remove the processor (see Remove the processor).
    11. Make note of where the cables are connected to the system board; then, disconnect all the cables.
      Attention
      Disengage all latches, cable clips, release tabs, or locks on cable connectors beforehand. Failing to release them before removing the cables will damage the cable connectors on the system board. Any damage to the cable connectors may require replacing the system board.
  2. Place the server on the side with the system board facing up.
  3. Remove the eight screws that secure the system board following the recommended numerical sequence shown in the illustration; then , carefully remove the system board out of the chassis.
    Note
    For reference, the torque required to fully loosen the screws is 0.5-0.6 newton-meters, 4.5-5.5 inch-pounds.
    Figure 1. Removing the screws that secure the system board
    Removing the screws that secure the system board
  4. Place the system board on a clean, flat, and static-protective surface.

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 you return 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.

Demo video

Watch the procedure on YouTube