I just got an ECSK75SA and an ENLIGHT 7237 case. I do not know how to get the LED lights working. Does it matter which way I plug in the cables into the motherboard headers? Also, how come there are 3 pins set aside for the HDD LED and only 2 pins set aside for the POWER LED but on the motherboard, the HDD LED will accept 3 pins and the POWER LED only 2.