Not Working Displayport quadro K5000 win10

Hey Folks,

Is there a solution for the issue of the Not Working Display Ports on Nvidia Quadro Graphic Cards? For GeForce there is a BiosUpdate available but it’s not Working for at least my Quadro K5000 under Windows 10 x64 - my Motherboard is a ASRock 990fx extreme 9.

How can I solve this issue? The DVI Connection is Working very well but I wanted to connect a projector (Beamer) via Displayport but it is not recognized on this Card - it’s Working on other devices.

Thanks in advance!