Hey Nymph, please sort yourself out. You are going round in ever decreasing circles.
Every connector has at most one YELLOW Wire in it and the YELLOW Wire is 12 Volts. So if I see the specs say -12V at 18A
Then I know every connector with a YELLOW Wire in it will have 12V at 18A
You must be specific if you hope one day to reach A+. Everything you have been given indicates that the Yellow cable is positive 12V (+12v) so why are you quoting negative 12V (-12V)
The Blue cable is negative 12v (-12V). On the ATX 20-pin Molex Main Power Cable (I already supplied a link to this) Pin 10 is colored Yellow for +12V, Pin 12 is colored Blue for -12V. There's no point in showing 12V,
you must show the polarity, + or -.
But a lot of specs for PSU in one spec say
-12V at 18A
-12V at 30A
So how do I know if the one that says 18A is not the YELLOW Wire in the Hard Drive connector and the same goes for the 30A
What the heck are you asking Have a look at the pretty technicolor pictures
here again,
the 4-pin Molex Peripheral Connector does NOT carry -12v at any pin. It has +12v DC, two gnds and one +5v DC, these are colored Yellow, Black, Black and Red (note -
Yellow for +12v DC). -12V will be carried on a BLUE cable, there is no Blue cable in a hard drive connecter.
If you want sensible answers you must ask sensible questions and read the answers.