Can anyone tell me if the black PCI-E 1X connector that is supposed to be used for the SupremeFX pseudo-XFi, can also be used like a regular PCI-E 1X slot? I would like to put my Asus Xonar there, but I don't want the board to freak out if that black slot is somehow reserved, gimped, or otherwise only supposed to be for the audio addon card. Thanks.