Originally Posted By: tman
Did you remove what looks like a zero ohm SMD resistor next to the master/slave header?


Yeah, check that -- or just verify that there is infinite resistance across the bare jumper terminals.

If it shows 0-ohms instead, then you know there's a factory zero-ohm jumper soldered on there that needs to be flicked off with an exacto-knife or soldering iron.

cheers