I am trying to calculate the output of my PCIE PSU cable. I know how to do that based on the number of 12V pins the cable has by checking it visually but there's a chance that one of the pins could be a dummy one and not a 12V one. I know that I can pull out a multimeter and test it but I won't be able to do that for a purchase decision, so I am wondering if there is a way I can find that out by looking at the PSU model specs?