I read somewhere that there is a setting in the uefi to make the m.2 slot use pci-e only, but I don't see it in my z170x, right now I have 1 intel ssd 600p series 512gb in the top m.2 slot and it disabled the first sata port, this mobo only has 4 main sata ports, it has 2 other ones beside them but I think I need different drivers for them because I connected 1 of my hdd there and it's not recognized, now another question will the second m.2 slot disable another sata port?