Hello all! I have some questions and want a better understanding of the Power LED. First of all, do we really need it to be plug in the motherboard? Because I have a dilemma with my Power LED. The motherboard I purchased has a 3-pin male Power LED while my computer case has a 2-pin female Power LED. So I can't manage to separate the postie and negative. Unless the middle pin on the motherboard is also counted as negative but I'm guessing that neutral. Any help on this would be much appreciated!