Ok, I feel like I'm brain dead right now and stupid
I am using a 8V 500ma output adapter, and a 80mm computer fan, it runs it as is, but too fast.
I figured I could just hook in a resister to slow it down for now.
I have a 330 ohm resistor, so i figure V = (0.0005)(330) = 0.165 voltage drop
I must be doing this wrong, when I hook the resistor up, the fan won't spin at all, I'm a little confused. I know there are better solutions, I'm just wondering what I'm missing here. I have tried it on both wires, same result.