It is true that Blackmagic often states that they do not officially support Dell hardware and even Windows Server 2008, however that does not mean it will not work.
We ship turn-key encoder systems every day with Dell hardware that work wonderfully. Below are configurations we use:
Dell R210 BM Intensity Pro, SDI, or Studio 2
Dell R310 BM Intensity Pro, SDI, Duo, or Studio2
Dell R610 Up to 2 – BM Intensity Pro, SDI, Duo, or Studio2
Dell R710 Up to 4 – BM Intensity Pro, SDI, Duo, or Studio2
Dell Precision M4500 – BM Intensity Pro, SDI, or Studio 2 with Magma ExpressBox PCI expansion
Dell Precision M6500 – BM Intensity Pro, SDI, or Studio 2 with Magma ExpressBox PCI expansion
That said, we have heard recently of a Dell Workstation (T7400) not working with Blackmagic cards.
Regarding the Ultrastudio Pro, the issue here was the first generation of USB 3 chipsets that all of the laptop vendors used did not work well with the Blackmagic devices. The next generation of USB 3 chipset is out now and Blackmagic has told me that there are several Dell and several HP laptops that now work fine with the Blackmagic USB 3 devices.
Tim Baldwin
Tim Baldwin
Kulabyte
http://www.kulabyte.com
Twitter: @kulabyte