I don't understand your question/term "dd2" as having any relationship to Video cards. DD2 is a term relating to ram/memory. I doubt that on-board ram would have any effect as to working/not working. The more the better.
This board can run any AGP 4x card in the brown (AGP) slot (keyed 1.5 volts) or it can run any PCI video card in any of the 3 white (PCI) slots that are empty.
It should be able to run any video card that will fit the slots with one exception on the agp card, ie: not to exceed 4x.