I Have Installed 5 Identical Machines with Gigabyte Mother boards and each machine as both Decklink 4k and Intensity pro 4k>
Only 1 of the five machines detected the Intensity card (all of them did detect the decklink).
After physically switching the cards between the one that worked and on who didn't i got to a point where i have 2 machines that are running.
Today I will try to update to the 10.4.1 driver to see if any luck, if not i will try what Adam (Thank you Adam) said worked for him. Although, it will be a real pain in the butt doing this for 3 machines (2 already work) specially when they are neatly installed in a rack.
and will keep all of you sharing my misery updated .
It would be nice though to Get an official response from BMD (We know you can hear us

) of what's going on, are you looking for a solution?