Which motherboard pin is + and which is-?

[2001blader]

What mother board pin is positive and which is negative? For the other ones it is + on left and - on right. The motherboard manual does not say which one is + and which is -. Which do I plug the positive into and which one do I plug the negative into? I am talking about an LED. You said it does matter where I plug it in. So there are two pins on the motherboard and two pins on the wires. Which motherboard pin is +?

 

[AxlFone]

Use psu for led power. Are you looking for 12V or 7V Or 5V=?

Red and black is giving 12V from molex connector.
Yellow and black is giving 5V and if you put red + yellow together you get 7V.

Ah this is better.