Let me start off by saying that im currently using a Gigabyte board and every board is different. My current board supports two m.2 drives only off the PCH. This in turn kills 4 of my sata ports. What i wanted to do was use the two Intel 760p drives i bought in RAID0 but it turns out that only the middle of the three m.2 slot and the PCIEx16 slot 2 are connected to the CPU and will work via VROC. So i figured this would happen so i just proceeded to use one as a boot drive and one as a game drive. Well If you use the middle slot that uses CPU lanes and add the second to the top PCH controlled m.2 slot that doesnt kill SATA ports it doesnt detect the drive. If you use just one drive in the CPU laned m.2 is also doesnt detect. Im getting fed up with this and have quickly come to the conclusion that gigabyte has a wonderful board with the worse bios. So im looking at replacing it with a X299 Dark. So here is what im curious about.

Basically im curious as to how the m.2 slots are mapped? I saw one of them is switchable between PCH or CPU in the BIOS but nothing is mentioned about the other one. So im really curious about if both can go to CPU? If not and one goes to CPU and one goes to PCH does it disable and SATA ports? Ive seen someone from EVGA state that RAID0 isnt possible on this board without a VROC key but the intel spec states that x299 does support VROC RAID0 without the need for a key by default if your using intel drives. Whats the real deal on that?
 
I appreciate the help in advance. I just dont want to buy the board and run into similar problems.

Sorry to be slightly off topic here but one of the things I hate is limited CPU resources which is why an M.2 cuts off other items on your Intel chipset motherboard. That is why I went with Threadripper which has 64 PCI-E lanes. I don't have this issue because of that and my X399 ASRock motherboard. Intel really needs to offer more PCI-E lanes and stop cutting off resources.