Sorry about that, I didn't see it. I really don't know how to even find half of the things required though but if you really need them and you told me how to I could find them possibly.
I don't know how to check my power supply either.
My computer is seriously old so I don't know whats in it especially.
But from what I know is that I have done all of what you said on there.
Slight problem, my PC is linked through an Elgato which I use to record videos and the Elgato is plugged into my main computer screen, a old laptop that controls whats being recorded and the PC. There's another screen that is directly plugged into the power board and the GPU though.
I could try rewiring the plugs possibly.
Sorry if this is really confusing, I'm trying...