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Install an SXM GPU

Follow instructions in this section to install a GPU.

About this task

When the HGX A100 80GB 500W 4-GPU Board is installed and if the ambient temperature is above 30°C, the GPUs may be instructed by the system to enter an emergency power reduction state whereby GPU performance will be impacted.

Removing and installing this component requires trained technicians. Do not attempt to remove or install it without proper training.

Make sure you have an alcohol cleaning pad available.
  • 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.

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

To prevent potential thermal issues, change the Misc setting in the BIOS from Option3 (default value) to Option1 if the following two conditions are met:
  • The server is equipped with a GPU adapter.

  • The UEFI firmware version is U8E128A or later.

For the method of changing the Misc setting, see
Prepare the following screwdrivers to ensure you can install and remove the corresponding screws properly
Table 1. Torque screwdriver type list
Torque screwdriver type listScrew type
PH 2 head screwdriverPhilips #2
Torx 10 screwdriverTorx T10 screw
The following illustration shows the GPU numbering.
Figure 1. SXM GPU Numbering


If there is any old thermal grease on the four GPUs and the cold plates, gently clean the top of the four GPUs and the cold plates with an alcohol cleaning pad.

  1. Remove protective covers from the GPU if they are installed.
    Figure 2. Removing the protective covers
    Removing the protective covers
  2. Gently place the GPU down on the SXM GPU board; then fasten the four Philips #2 screw to secure the GPU to the SXM GPU board.
    Tighten and remove the screws with a torque screwdriver sets to the proper torque. For reference, the torque required for the screws to fully tighten/removal is 0.5±0.05 newton-meter, 4.5±0.5 pound-inch.
    Figure 3. Installing a GPU to the SXM GPU board

  3. Proceed to install the SXM GPU board.
    Apply thermal grease only when the SXM GPU board is installed in GPU tray

After you finish

  1. Reinstall the SXM GPU board. See Install the SXM GPU board.

  2. Reinstall the Lenovo NeptuneTM liquid-to-air (L2A) hybrid cooling module. See Install the Lenovo Neptune(TM) liquid-to-air (L2A) hybrid cooling module.

  3. Reinstall the retimer assembly. See Install the retimer assembly.

  4. Reinstall the front I/O expansion board module. See Install the front I/O expansion board module.

  5. Reinstall the network adapter. See Install a network adapter.

  6. Reinstall the 2.5-inch drive assembly. See Install the 2.5-inch drive cage assembly.

  7. Complete the parts replacement. See Complete the parts replacement.

Demo video

Watch the procedure on YouTube