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Remove the system I/O board

Follow the instructions to remove the system I/O board, also known as Datacenter Secure Control Module (DC-SCM).

About this task

Important

  • This task must be operated by trained technicians that are certified by Lenovo Service. Do not attempt to remove or install it without proper training and qualification.

  • 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

  • Read Installation Guidelines and Safety inspection checklist to ensure that you work safely.

  • Power off the server and peripheral devices and disconnect the power cords and all external cables. See Power off the server.

  • Keep static-sensitive parts in their static-protective packages until installation to prevent exposure to static electricity. Handle the parts with an electrostatic-discharge wrist strap or other grounding systems. Place the parts on a static-protective surface.

Before you begin

  1. Backup the XCC/UEFI setting. See Back up the server configuration

  2. Backup the FoD key.

Procedure

  1. Prepare your server.
    1. Remove the top cover. See Remove the top cover.
    2. If your server comes with an air baffle, remove it first. See Remove the air baffle.
    3. If your server comes with a rear drive assembly, remove it first. See Remove the 2.5-inch rear drive assembly.
    4. Record where the cables are connected to the system board assembly; 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 assembly. Any damage to the cable connectors may require replacing the system board assembly.
    5. Remove any of the following components that are installed on the system board assembly and put them in a safe, static-protective place.
    6. Pull out the power supplies gently. Ensure that they are disconnected from the system board assembly.
  2. Remove the MicroSD card, see Remove the MicroSD card.
  3. Separate the system I/O board from the processor board.
    Note
    To prevent the contact of the IO board from damage, pinch the handle on the IO board and pull out the IO board outward. During the entire pulling action, ensure that the IO board remains as horizontal as possible.
    Figure 1. System I/O board removal

    1. Remove the screws that secure the system I/O board.
    2. Pinch the handle on the IO board and pull the IO board outward to disengage it from the processor board.

After you finish

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.