Okay. I will try it with my MSI 790FX-GD70 which has 8PIN and I will plug just the 4PIN cable to see...
Bide with me as I am quite busy these past few days and have not been able to tinker with my PC for quite a while.
Shove tried it with an Intel board, couldn't get it to work with or without the adapter.
I have an Intel board that came with the 4-8 pin adapter , won't boot without it.