I just did and it WORKS!!!!! in regards to drivers all installed however I'm not at home and am doing this remotely RDP, so I can't plug in a dummy plug into the AMD Card to test the AMD Settings tool (as it needs a card plugged in to open the tool )

However its mining all 5 at 29.3 with my settings and one is at 28, I thinks that due to me leaving my PCI-e setting to Auto in the Bios along with a few others I left at default. but its a good start i think that at least the drivers install :)