Hi Orb85750; Unless you have a really old MB the Zorro II slots have pin 1 marked on the MB. Located in the far back left. I can never remember if the pin numbers run down the left side first and then up to the back right or flow from the back to the front in odd||even combinations. Use the pinout list here;
Zorro II to identify the 5v and 12v pins. And that should set you straight.
(Make sure you dont short the 12v pin when measuring)
Good Luck.
