ok, i have got my basic components in my case, proccesor, heatsinkk, ram, and im now trying to wire up the power button hd led and the reset button. i have three sets of plastic plugs, power, hd led and reset which will each take 2 pins. i have an assrock 775 dual-vsta. I know that some of the plugs are polarity specific, but i dont know which wire on each of the plug's is positive or negative. will putting them on wrong damage the system?