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Install a GPU board (trained technician only)

Use this information to install a GPU board.

About this task

Required tools

Make sure you have the required tools listed below in hand to properly replace the component.

  • Screws and screwdrivers

    Prepare the following screwdrivers to ensure you can install and remove corresponding screws properly.
    Screw TypeScrewdriver Type
    Torx T10 screwTorx T10 head screwdriver
    Torx T15 screwTorx T15 head screwdriver
    Phillips #1 screwPhillips #1 head screwdriver
    Phillips #2 screwPhillips #2 head screwdriver
Attention

  • Read Installation Guidelines and Safety inspection checklist to ensure that you work safely.

  • Turn off the corresponding DWC tray that you are going to perform the task on.

  • To avoid damaging the water loop, always use the water loop carrier when removing, installing or folding the water loop.

  • A torque screwdriver is available for request if you do not have one at hand.

  • Hold the long sides of the GPU board with two hands while removing the new GPU board from the package box.
    Figure 1. Removing GPU board from the package box
    Removing GPU board from the package box

  • Once the GPU board is removed from the plastic protective bag, hold two handles with both hands to move the GPU board.

    Figure 2. Removing GPU board from the package box
    Removing GPU board from the package box
Important
Gap pad/putty pad replacement guidelines

  • To identify the gap pad/putty pad location and orientation, see Gap pad/Putty pad identification and location.

  • Before replacing the gap pad/putty pad, gently clean the interface plate or the hardware surface with an alcohol cleaning pad.

  • Hold the gap pad/putty pad carefully to avoid deformation. Make sure no screw hole or opening is blocked by the gap pad/putty pad material.

  • Do not use expired putty pad. Check the expiry date on putty pad package. If the putty pads are expired, acquire new ones to properly replace them.

Firmware and driver download: You might need to update the firmware or driver after replacing a component.
Watch the procedure
  • A video of this procedure is available at YouTube.

Procedure

Note
Make sure to inspect the connectors and sockets on the GPU and the GPU board. Do not use the GPU or the GPU board if its connectors are damaged or missing, or if there are debris in the sockets. Replace the GPU or the GPU board with a new one before continuing the installation procedure.

  1. Align the GPU board with the two guide pins on the tray; then, gently lower down the GPU board to the node.
    Figure 3. Installing the GPU board
    Installing the GPU board
  2. Install the M3 screws (x7) on the GPU board.
    Note
    For reference, the torque required for the screws to be fully tightened/removed is 5.0+/- 0.5 lbf-in, 0.55+/- 0.05 N-M.
    Figure 4. Installing the M3 screws on the GPU board
    Installing the M3 screws on the GPU board
  3. Install the T15 screws (x2) on the GPU board.
    Note
    For reference, the torque required for the screws to be fully tightened/removed is 0.6 N-m, 5.3 in-lbf, torque tolerance is +/- 4%.
    Figure 5. Installing the T15 screw on the GPU board
    Installing the T15 screw on the GPU board
  4. Push the carrier board to connect it to the GPU board.
    Figure 6. Connecting the carrier board to the GPU board.
    Connecting the carrier board to the GPU board
  5. Secure the carrier board to the GPU board.
    1. Insert the GPU board retention clips into the slots on the carrier board.
    2. Rotate the GPU board handle toward the GPU board, and press it down to lock the carrier board in place.
    Figure 7. Securing the carrier board to the GPU board
    Securing the carrier board to the GPU board
  6. Install the two standoffs to the carrier board.
    Figure 8. Installing carrier board standoffs
    Installing carrier board standoffs
After you finish

  1. Install the network board. See Install the network board (trained technician only).

  2. Install the GPUs to the GPU board. See Install a GPU (trained technician only).

  3. Install the MCIO cables. Follow the guidance and routing information in Internal cable routing.

  4. Install the bus bar. See Install the bus bar.

  5. Install the cross braces. See Install the cross braces.

  6. Install the tray cover. See Install the tray cover.

  7. Install the tray into the enclosure. See Install a DWC tray in the enclosure.

  8. Connect all required external cables to the solution.
    Note
    Use extra force to connect QSFP cables to the solution.

  9. Check the power LED on each node to make sure it changes from fast blink to slow blink to indicate all nodes are ready to be powered on.