Dear all,

      I want to install a NVIDIA A100-80G card on my R740 server. After connecting the power supply cable and check with lspci, I can't find "NVIDIA" in the list, which means the GPU card is not identified by the server. 

My OS is UBUNTU2004 and I download the related driver. When I run "nvidia-smi", it showed "NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver. Make sure that the latest NVIDIA driver is installed and running." 
Thank you for the help.