I bought another power supply to try, I was just hoping to have a more definitive answer before I open it and not be able to return it.
Are you referring to returning the PSU? Where did you buy it? Most stores (Best Buy, Fry's, etc...) allow you to return computer components even if opened.
Edit: Also, wouldn't be a bad idea to either keep it for future testing or return it and pick up cheap one (i.e dynex 400w 39.99) for future testing.