It does zilch, nada, rien, nothing, nande mo nai, niets, nichts...
Basically with either power source just one little green light turns on and that's it...
I simply don't understand how a brand new motherboard can simply do nothing at all. Don't they test those things before they leave the factory? I mean I rebuild my old PC and the power supply worked fine on that one. So it's the motherboard for sure. I am that unlucky... First the one shop falsely tells me they have a DDR3 and deliver a DDR4 twice. Then I buy a completely different one and it's defective.
So... I'm done. Never going to try this again