Which wires are poistive and negative on the computer?

Trying to build my own PC but I can't tell which wires, of those leading from the front of the PC (Like the power switch, reset switch) is positive or negative? Is it a specific color? Symbol? There is nothing in the case manual to describe which is which and the motherboard manual only tells me which pins are... show more Trying to build my own PC but I can't tell which wires, of those leading from the front of the PC (Like the power switch, reset switch) is positive or negative? Is it a specific color? Symbol? There is nothing in the case manual to describe which is which and the motherboard manual only tells me which pins are + or -. On a related note, if I have them connected to the wrong pins, could that cause my power supply to not work?
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