There are several wires in the computer case that are for things like the Hard Drive, lights that let on know if the computer is on or not etc. I am pretty sure how and where they should be connected. My problem is knowing which wire is positive or negative. Within each pair one of the wires is always white. The other wire is a another color. I am sure I am looking at the answer STILL I don't have a clue as to which wire is positive or negative. Thanks!