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Remove the GPU complex adapter plate

Follow instructions in this section to remove 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.
  • Power off the server and peripheral devices and disconnect the power cords and all external cables. See Power off the server.
  • 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:
  • Torque screwdriver which can be set to 0.6 newton-meters, 5.3 inch-pounds
  • Torx T15 extended bit (6-inch long)
Note
The GPU complex adapter plate might look different from the illustration.

Procedure

  1. Make preparation for this task.
    1. Remove all the power supply units. See Remove a hot-swap power supply unit.
    2. Remove all the front fans. See Remove a hot-swap fan (front and rear).
    3. Remove all the 2.5-inch hot-swap drives and the drive bay fillers (if any) from the drive bays. See Remove a 2.5-inch hot-swap drive.
    4. Pull the 8U GPU shuttle out of the chassis, and place it onto the lift platform. See Remove the 8U GPU shuttle.
    5. Remove the cable cover. See Remove the cable cover.
    6. Remove the power complex. See Remove the power complex.
    7. If the rear support bracket is installed, remove it.
      1. Unfasten the four screws marked with A on both sides of the 8U GPU shuttle.
      2. Remove the rear support bracket from the 8U GPU shuttle.
      Figure 1. Rear support bracket removal
      Rear support bracket removal
    8. Remove all the rear fan control board assemblies. See Remove a rear fan control board assembly.
    9. Remove all the GPU air ducts. Depending on the configuration, see Remove an H100/H200 GPU air duct or Remove an MI300X GPU air duct.
  2. Disengage the PCIe switch shuttle from the 8U GPU shuttle.
    1. Press the two blue release latches.
    2. Rotate the two release levers until they are perpendicular to the PCIe switch shuttle.
    3. Pull the PCIe switch shuttle forward until it stops.
      Important
      Push the two release levers back until they lock into place after pulling out the PCIe switch shuttle to avoid damage.
      Figure 2. PCIe switch shuttle removal to stop position
      PCIe switch shuttle removal to stop position
  3. Flip over the front PCIe switch cable harness.
    1. Unfasten the ten screws marked with C on both sides of the 8U GPU shuttle.
    2. Flip over the front PCIe switch cable harness, and gently place it on the I/O cover.
    Figure 3. Flipping over the front PCIe switch cable harness
    Flipping over the front PCIe switch cable harness
  4. Remove the GPU complex. Depending on the configuration, see Remove the H100/H200 GPU complex or Remove the MI300X GPU complex.
  5. Unfasten the fourteen screws marked with an arrow on the GPU complex adapter plate; then, lift the GPU complex adapter plate out of the 8U GPU shuttle.
    Figure 4. GPU complex adapter plate removal
    GPU complex adapter plate removal

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.