Usually the case connector to the motherboard has a 2 row of pins one four pin slots with a blank and the other side with five pin slots. usually the motherboard will have two sets of pin connectors labled one and two, that you can hook up to use. One for the front of the case and one for the back of the case.
If that is the case, it will only clip on one way. Be carefull, there are also USB connection points that are just a bit different, they are similar, but usuall its 5 on one side and three space one on the other part of the socket.




