Nvidia DGX-2 - Chapter 10. Updating Firmware; 10.1 General Firmware Update Guidelines

 nvfw-dgx2_18.09.4
 nvfw-dgx2:19.03.1.
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IMPORTANT: DGX-2H is supported only with firmware container nvfw-dgx2:19.03.1
or later. Do not update the DGX-2H firmware using an earlier container as this
will result in version mismatch with the DGX-2H.
DGX-2 System Firmware Update Container Release Notes
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Caution: Stop all unnecessary system activities before attempting to update
firmware, and do not add additional processing loads while an update is in