hi,
I was just experiemnting with dmacs from the 2091 in a 3000. they seem to not work right,it wont damage anything, but the dmac in the 3000 has a DMAC-81 in the part number, and the 2091 has a DMAC-65 ,i had no luck, but if you have luck let us know.Both are rev. 2 dmac chips tho.
Mike