ELBOX would know as one of their products fit into the Blizzard ppc slot. i could find out some of the signals are, but im too busy at the moment as im working on something else.
a new graphics card could be made to fit the Blizzard PPC card.
*correction* i already know what some of the pins do.
here's something some of you did not know, theres 12v & -12v located on the card but is not used.