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Install the front PCIe switch cable harness

Follow instructions in this section to install the front PCIe switch cable harness. The procedure must be executed by a trained technician.

About this task

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.
  • Two people and one lifting device on site that can support up to 400 lb (181 kg) are required to perform this procedure. If you do not already have a lifting device available, Lenovo offers the Genie Lift GL-8 material lift that can be purchased at Data Center Solution Configurator. Make sure to include the Foot-release brake and the Load Platform when ordering the Genie Lift GL-8 material lift.
Note
Make sure you have a 5 mm hex socket screwdriver available to properly replace the component:

Procedure

  1. If necessary, attach the label to the signal cable(s).
    1. Attach the white space portion of the label to the end of the cable that connects to the PCIe switch board.
    2. Wrap the label around the cable and attach it to the white space portion.
    Figure 1. Label application
    Label application
    Note
    See the table below to identify the corresponding labels for the cables.
    FromToLabel
    Front PCIe switch cable harness: MCIO 1 cablePCIe switch board: MCIO connector 1 (MCIO1)MCIO 1
    Front PCIe switch cable harness: MCIO 2 cablePCIe switch board: MCIO connector 2 (MCIO2)MCIO 2
    Front PCIe switch cable harness: MCIO 3 cablePCIe switch board: MCIO connector 3 (MCIO3)MCIO 3
    Front PCIe switch cable harness: MCIO 4 cablePCIe switch board: MCIO connector 4 (MCIO4)MCIO 4
    Front PCIe switch cable harness: MCIO 5 cablePCIe switch board: MCIO connector 5 (MCIO5)MCIO 5
    Front PCIe switch cable harness: MCIO 6 cablePCIe switch board: MCIO connector 6 (MCIO6)MCIO 6
    Front PCIe switch cable harness: MCIO 7 cablePCIe switch board: MCIO connector 7 (MCIO7)MCIO 7
    Front PCIe switch cable harness: MCIO 8 cablePCIe switch board: MCIO connector 8 (MCIO8)MCIO 8
  2. If needed, install the cables to the front PCIe switch cable harness.

    • Front I/O module, integrated diagnostics panel, GPU management, or signal cable

      Align the cable with the hole on the front PCIe switch cable harness and insert it; then, fasten the four screws to secure the cable.

      Figure 2. Front I/O module, integrated diagnostics panel, GPU management, or signal cable installation
      Front I/O module, integrated diagnostics panel, GPU management, or signal cable installation

    • Power cable

      1. Align the cable with the hole on the front PCIe switch cable harness, and insert it.
      2. Insert the two washers and the two screws to the holes, and fasten them to secure the cable.
      Figure 3. Power cable installation
      Power cable installation
  3. Install the front PCIe switch cable harness.
    1. Align the front PCIe switch cable harness with the four guide pins on the 8U GPU shuttle; then, lower the front PCIe switch cable harness into the 8U GPU shuttle until it is securely engaged.
    2. Locate the ten screw holes marked with C on both sides of the 8U GPU shuttle; then, fasten the ten screws to secure the front PCIe switch cable harness.
    Figure 4. Front PCIe switch cable harness installation
    Front PCIe switch cable harness installation
  4. Connect the cables to the PCIe switch board and the PSU interposer. See below for more information.
  5. Install the following front I/O module cables.
    • Fasten the two hex nuts (1) to install the Mini DisplayPort cable to the front I/O bracket.
    • Fasten the two screws (2) to install the USB cable to the front I/O bracket.
    Figure 5. Front I/O module cables installation
    Front I/O module cables installation
  6. Install the front I/O module.
    1. Insert the front I/O module into the front I/O module slot.
    2. Fasten the inner screw to secure the front I/O module.
    3. Fasten the two outer screws to secure the front I/O module.
    Figure 6. Front I/O module installation
    Front I/O module installation

After you finish

  1. Reinstall the integrated diagnostics panel. See Install the integrated diagnostics panel.
  2. Reinstall the I/O cover. See Install the I/O cover.
  3. Reinstall the cable cover. See Install the cable cover.
  4. Reinstall the 8U GPU shuttle. See Install the 8U GPU shuttle.
  5. Reinstall all the 2.5-inch hot-swap drives or drive bay fillers (if any) into the drive bays. See Install a 2.5-inch hot-swap drive
  6. Reinstall all the front fans. See Install a front hot-swap fan.
  7. Reinstall all the power supply units. See Install a hot-swap power supply unit.
  8. Complete the parts replacement. See Complete the parts replacement.