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Remove the system I/O board or processor board

Follow instructions in this section to remove the system I/O board or processor board.

About this task

Important
  • Removing and installing this component requires trained technicians. Do not attempt to remove or install it without proper training.
  • When removing the memory modules, label the slot number on each memory module, remove all the memory modules from the system board assembly, and set them aside on a static-protective surface for reinstallation.
  • When disconnecting cables, make a list of each cable and record the connectors the cable is connected to, and use the record as a cabling checklist after installing the new system board assembly.
Attention

Procedure

  1. Make preparation 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 power supply units. See Remove a hot-swap power supply unit
    5. Remove the front top cover. See Remove the front top cover.
    6. Remove the rear top cover. See Remove the rear top cover.
    7. Remove the front air baffle. See Remove the front air baffle.
    8. Remove the fans and the fan cage. See Remove a fan and Remove the fan cage.
    9. Remove the PCIe risers. See Remove a PCIe riser.
    10. Remove the rear air baffle. See Remove the rear air baffle.
    11. Remove the intrusion switch. See Remove the intrusion switch.
    12. Remove the OCP modules if necessary. See Remove an OCP module.
    13. Remove the power distribution board. See Remove the power distribution board.
    14. Remove the PHMs. See Remove a processor and heat sink.
    15. Make sure to label the slot number on each memory module, remove all the memory modules from the system board assembly, 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.
  2. Disconnect all the cables from the system board assembly. As you disconnect the cables, make a list of each cable and record the connectors the cables are connected to, and use the record as a cabling checklist after installing the new system board assembly.
  3. Remove the system board assembly.
    1. Pull up the rear plunger to release the system board assembly.
    2. Grasp the front lifting handle and the rear plunger; then, slide the system board assembly toward the front of the chassis.
    3. Hold the front lifting handle and the rear plunger; then, lift the system board assembly out of the chassis.
      Note
      The lifting handle only serves the purpose of removing system board assembly. Do not attempt to lift the whole server with it.
      Figure 1. System board assembly removal
      System board assembly removal
  4. (Optional) If you are going to replace the system I/O board, remove the firmware and RoT security module and the MicroSD card from the system I/O board. See Remove the firmware and RoT security module and Remove the MicroSD card.
  5. Separate the system I/O board from the processor board.
    Note
    To prevent the contact of the I/O board from damage, pinch and lift the plunger on the I/O board upward a little and pull out the I/O board outward. During the entire pulling action, ensure that the I/O board remains as horizontal as possible.
    1. Remove the four screws that secure the system I/O board.
    2. Lift and hold the rear plunger; then, slide the system I/O board towards the rear end of the chassis to disengage it from the processor board.
      Figure 2. System I/O board removal
      System I/O board removal

After you finish

  1. 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 processor board, make sure that you install the processor socket covers from the new processor board. To replace a processor socket cover:
    1. Take a socket cover from the processor socket assembly on the new processor board and orient it correctly above the processor socket assembly on the removed processor board.
    2. Gently press down the socket 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 socket cover when it is securely attached.
    3. Make sure that the socket cover is securely attached to the processor socket assembly.
  2. If you plan to recycle the component, see Disassemble the system board assembly for recycle.

Demo video

Watch the procedure on YouTube