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Remove the GPU baseboard

Follow instructions in this section to remove the GPU baseboard. 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 screwdrivers
  • Two Torx T15 extended bits (300 mm long)
  • One B200 jig

Procedure

  1. Make preparation for this task.
    1. Pull the system shuttle out of the chassis, and place it onto the lift platform. See Remove the system shuttle.
    2. Remove the compute tray. See Remove the compute tray.
    3. Remove the cable holder frame and baffle assembly. See Remove the cable holder frame and baffle assembly.
    4. Remove the power complex. See Remove the power complex.
    5. Disconnect the cables from the GPU baseboard.
    6. Remove all the GPU air ducts. See Remove a GPU air duct.
    7. Remove all the GPU and heat sink modules. See Remove a GPU and heat sink module.
  2. Pull the PCIe switch shuttle to the first stop position.
    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 to the first stop position.
      Important
      To avoid damage, push the two release levers back and ensure they lock into place after extending the PCIe switch shuttle to its first stop position.
      Figure 1. Pulling the PCIe switch shuttle to the first stop position
      Pulling the PCIe switch shuttle to the first stop position
  3. Remove the support bracket.
    1. Unfasten the two screws that secure the support bracket.
    2. Lift the support bracket out of the system shuttle.
    Figure 2. Support bracket removal
    Support bracket removal
  4. Remove the bulkhead.
    1. Unfasten the eight screws marked with A on both sides of the system shuttle.
    2. Slide the bulkhead backward and remove it from the system shuttle.
    Figure 3. Bulkhead removal
    Bulkhead removal
  5. Remove the cover from the NVSwitch heat sink.
    Figure 4. NVSwitch heat sink cover removal
    NVSwitch heat sink cover removal
  6. Unfasten the eighteen Torx T15 captive screws on the GPU baseboard.
    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 5. Screw removal
    Screw removal
  7. Remove the GPU baseboard.
    1. Extend the two handles (1) on both sides of the GPU baseboard.
    2. Hold the two handles (1), and lift the GPU baseboard out of the system shuttle.
    Figure 6. GPU baseboard removal
    GPU baseboard 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.