DFI has supported Phoronix in the past, but I will say that there motherboards aren't engineered perfectly. Back with one of their Grantsdale LANParty UT motherboards that had some wacky issues with Fedora Core (hmm, at that time it must have been Core 3 or Core 4). The DFI nForce 4 boards were very popular, and I had only run into a few peculiar issues with them. I or anyone else involved with Phoronix haven't yet gotten around to trying any of DFI's new Intel or AMD motherboards.

