I have absolutely no idea of which card are we talking about and how to find right setup for it, but I'm curious why wouldn't you use Amiga HDD and make HDD file for MS-DOS side. You can download Users Guide from amiga.resource.cx, and see page 61 for virtual HDD setup--->
http://amiga.resource.cx/manual/A2088-A2286.pdfWill be plenty fast for what PC XT will ever need.
