Recently I installed ESXi 6.5 (free license) in home-lab PC.
I also have installed a quadr 4000 nvidia GPU in one of my PCI ports for extra GPU use.
Note: my monitor VGA is directly connected to my new nvidia port.
Through a little googling I found that in order to give access the new GPU card to a VM you should add the new PCI port to that VM using "Configuration PassThrough" Button. But in my case the button is disabled (Not clickable). I found this tutorial Pass-Through a NVIDIA GRID K1 to VM on ESXi 6.0 - 414 - YouTube which had the same issue but he fixed it by a little changes on his bios but the bios mode that he is using is different than mine, as you might know I am using Asus UEFI Bios Utility which I couldn't find some of the options that shows in the video.
All replies are much appreciated: