Since you have 2 systems, I would update one of them with a newer and faster computer. I suspect you would be shocked at the difference in horsepower with a modern 12 core, running at 3.5(ish) GHz with 64GB of RAM(which is probably double the speed of your current RAM). Put the HDX card in a newer machine, connect some 192's and do some testing. Worst case; you have a powerful machine to host VEPro. You can't move into the future without letting go of the past