Hi. I am trying to connect 3 displays to Nvidia NVS 310 GPU card, but unfortunately it only has 2 display ports. The system is a DEll Precision Tower 5810. So I tried to add additional gpu: Nvidia Quadro NVS 295, that will work with Nvidia NVS 310. It is working without issues if I do it on a Windows 7 OS that comes from the factory and I able to see the desktop from three displays, but if I format the desktop and install clean Windows 7 sp1 with all the updates and nvidia latest drivers, the operation system disables automatically one of the cards, and I am able to see only 2 displays. Please help me. Thanks.
Try installing Win 7 with all updates and drivers with one card and then add the other later and see if that works