There are other considerations, for example, PCI Bus segmentation, which is why often in addition to listing their approved stations, they list the proper slots to install cards onto to avoid issues. DNAs require the full bandwidth of their respective busses, and sometimes manufacturers aren’t great making that information clear. It’s less of an issue with modern motherboards though. The other issue is, Avid won’t take advantage of the quad core processor (at least as far as I know) so while they may in the near future, right now you’ll see no advantage to using a quad core PC.
As far as approved video cards, they list them on their website, but I use a PNY Quadro FX 1300 in my xpress system, but the PNY Quadro FX 1500 is a popular one for MC or Xpress.
Richard Sanchez
North Hollywood, CA
“We are the facilitators of our own creative evolution.” – Bill Hicks