Evox can tell you the md5
It doesnt seem that most people know this.. but evox can tell you the md5 of the bios your using, start up evox while using the bios you want the md5 of,
then open the evox.ini from your evox and youll see a line that says
Current = 0x60331f8a6c9319c8a9cea14f09c61483
that string after = is the md5 of the current bios your using.
so you can then take that and make another line in the evox.ini with
ROM = "X3 1959",0x60331f8a6c9319c8a9cea14f09c61483
Simple.