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Install the system I/O board

Follow instructions in this section to install the system I/O board. The procedure must be executed by a trained technician.

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 the part without proper training and qualification.
Attention
  • Read Installation Guidelines and Safety inspection checklist to ensure that you work safely.
  • Touch the static-protective package that contains the component to any unpainted metal surface on the server; then, remove it from the package and place it on a static-protective surface.
  • Prevent exposure to static electricity, which might lead to system halt and loss of data, by keeping static-sensitive components in their static-protective packages until installation, and handling these devices with an electrostatic-discharge wrist strap or other grounding system.
Note
Make sure you have a torque screwdriver available to properly replace the component.
Firmware and driver download: You might need to update the firmware or driver after replacing a component.

Procedure

  1. If necessary, attach the labels to both ends of the cable that connects to the system board.
    1. Attach the white space portion of the label to one end of the cable.
    2. Wrap the label around the cable and attach it to the white space portion.
    3. Repeat to attach the other label to the opposite end of the cable.
    Figure 1. Label application
    Label application
    Note
    See the table below to identify the corresponding labels for the cable.
    FromLabelToLabel
    System I/O board: System board connectorDC-SCMSystem board: System I/O board connector
    • P2-DC-SCM
    • DC-SCM
    System board: SPI/eSPI connector
    • P3-SPI/eSPI
    • DC-SCM
  2. Install the system I/O board.
    1. Connect the cable to the system I/O board.
    2. Align the notches on the system I/O board with the retainers as illustrated. Align the connectors on the system I/O board with the slots on the NVMe drive and PCIe switch board cage; then, gently slide and insert the system I/O board into place.
    3. Tighten the four screws to secure the system I/O board and the cable.
      Note
      Tighten the screws with a torque screwdriver set to the proper torque. For reference, the torque required for the screws to be fully tighten is 0.9 ± 0.2 newton-meters.
      Figure 2. System I/O board installation
      System I/O board installation
  3. Connect the FPC cable to the system I/O board.
    1. Pull up the connector latch.
      Figure 3. Pulling up the connector latch
      Pulling up the connector latch
    2. Match the silkscreen on the FPC cable and the connector. Align the cable so that the exposed copper contacts face the corresponding pins on the connector; then, gently insert the cable into the connector on the system I/O board.
      Silkscreen on FPC cableSilkscreen on system I/O board
      PHY2_CONN SIDEPHY2_CONN
      Figure 4. FPC cable connection
      FPC cable connection
    3. Press the connector latch to secure the cable.
      Figure 5. Pressing connector latch
      Pressing connector latch
    4. Visually inspect the cable installation to confirm the white line on the cable is invisible. The cable is not installed correctly if the white line remains visible.
      Figure 6. FPC cable installation inspection
      FPC cable installation inspection

After you finish

  1. Reinstall the front fan cage. See Install the front fan cage.
  2. Push the system shuttle fully into the chassis.
    1. Lift the two lock latches on both sides of the shuttle.
    2. Slide the shuttle into the chassis.
    3. Push the shuttle fully into the chassis.
    4. Rotate the two release levers until they lock into place.
    Figure 7. System shuttle installation
    System shuttle installation

    System shuttle installation
  3. Update the UEFI firmware. (Lenovo service technicians only) See Procedure for replacing System I/O board (DC-SCM) and updating system firmware on V4 system..
  4. Update the XCC/LXPM/FPGA SCM/LXUM firmware. See Update the firmware.
  5. Perform OneCLI commands or XCC actions to restore the UEFI and XCC settings. See OneCLI commands that restore configuration settings or Using XCC to restore the BMC configuration.
  6. Set the TPM policy. See Enable TPM.
  7. If hiding TPM or updating TPM firmware is needed, see Hide/observe TPM or Update the TPM firmware.
  8. Optionally, enable UEFI Secure Boot. See Enable UEFI Secure Boot.
  • Enable TPM
    The server supports Trusted Platform Module (TPM) of Version 2.0.
  • Hide/observe TPM
    TPM is enabled by default to encrypt data transfer for system operation. Optionally, you can disable TPM using Unified Extensible Firmware Interface (UEFI) or Lenovo XClarity Essentials OneCLI.
  • Update the TPM firmware
    Optionally, you can update the TPM firmware using Lenovo XClarity Essentials OneCLI.
  • Enable UEFI Secure Boot
    Optionally, you can enable UEFI Secure Boot.