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Install the GPU complex adapter plate

Follow instructions in this section to install the GPU complex adapter plate. 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 the required tools listed below available to properly replace the component:
  • One torque screwdriver
  • One Torx T15 extended bit (300 mm long)
  • One Torx T8 magnetic extended bit (100 mm long)
  • One UltraPass connector removal tool
  • One OSFP card sideband cable press tool
  • Alcohol cleaning pads

Procedure

  1. Align the GPU complex adapter plate with the GPU shuttle base; then, place the adapter plate onto the base.
    Figure 1. GPU complex adapter plate installation
    GPU complex adapter plate installation
  2. Follow the sequence shown in the illustration below to fasten the eighteen screws to secure the GPU complex adapter plate.
    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 0.5 newton-meters, 4.3 inch-pounds.
    Figure 2. Screw tightening sequence
    Screw tightening sequence
  3. Install the GPU complex.
    1. Hold the handles on both sides of the GPU baseboard in the correct orientation as illustrated; then, align the GPU complex with the adapter plate, and gently place it onto the adapter plate.
    2. Push the two handles down.
    Attention
    Make sure two people stand on either side of the GPU complex, and lift it by holding the two handles.
    Figure 3. GPU complex installation
    GPU complex installation
  4. Follow the sequence shown in the illustration below to fasten the seventeen Torx T15 captive screws to secure the GPU complex.
    Important
    Do not overtighten the screws to avoid damage.
    Note
    Loosen or tighten the screws with a torque screwdriver set to the proper torque. For reference, the torque required for the screws to be fully loosen or tighten is 0.6 ± 0.024 newton-meters, 5.3 ± 0.212 inch-pounds.
    Figure 4. Screw installation
    Screw installation
  5. Install the NVSwitch heat sink cover.
    1. Place the cover onto the heat sink.
    2. Fasten the four screws to secure the cover.
    Figure 5. NVSwitch heat sink cover installation
    NVSwitch heat sink cover installation

After you finish

  1. Reconnect the cables to the GPU baseboard. See GPU baseboard cable routing and OSFP card cable routing for more information.
    Note
    To reconnect the OSFP card UltraPass and sideband cables, refer to steps 4 to 8 in Install an OSFP card and the support tray.
  2. Reinstall the GPU shuttle. See Install the GPU shuttle.
  3. Reinstall the rear fan bulkhead. See Install the rear fan bulkhead.
  4. Reinstall the system shuttle. See Install the system shuttle.
  5. Complete the parts replacement. See Complete the parts replacement.