(January 20, 2017 at 5:35 pm)Doubting Thomas Wrote: It's because engineers don't want things to remain universal.
Ninety-nine times out of a hundred you'd be right. But check out the link Jörmungandr gave us in post #5. It turns out that 24 pin and 20 pin power supplies are interchangeable with 24 pin and 20 pin mobos. It just depends on the power requirement of your graphics card. That was an interesting and useful piece of info. Definitely not what one would expect...