Firewire card issues

I do a lot of music recording but I'm having issues with my firewire card being recognized by Mavericks 10.9.5. Here are my specs and this is what's happening...

GA z97x gaming 3 motherboard
i7 4790k
GTX 660
32 GB Ripjaws 1600 DDR3
Samsung 500GB 850 EVO
Noctua NH U14S

I'm trying to connect my LaCie 500GB d2

Here's the kicker. If I install Multibeast with System Definitions as "3.1 Mac Pro," the firewire card is read by the mac but doesn't seem to work and my mac doesn't see any hard...

Firewire card issues