SSD M.2 Drive not working with SATA HDD

[Adept Dave]

How do I enable a M.2 SSD NVMe and a SATA HDD at the same time? I built a new computer with Samsung's new 960 EVO M.2 SSD and a Seagate Barracuda 2TB HDD. I understand that using a M.2 Drive will disable 2 SATA ports but I have tried every port it says it disables 5 and 6. So I tried 1,2,3,4,5,6 with 1-4 I got it to show up in the bios, but when I went to launch windows (Windows Pro 10 64-bit) It didn't show up in file explorer that the hard drive was there, only the M.2 drive. When I tried 5,6 just for testing, the HDD did not show up even in the bios (As expected). I also tried using a different M.2 port and still nothing. For some reason it still shows that I have the HDD in disk management. Could it be a formatting issue?

Parts
Motherboard: Maximus Hero IX
CPU: i7 7700k
PSU: EVGA G2 850W
GPU: GTX 1080 EVGA FTW ACX 3.0
SSD: 960 EVO M.2 500GB
HDD: Seagate Barracuda 2TB 7200RPM

I would greatly appreciate it if you guys could help me out!
Thanks

 

[Adept Dave]

Well thanks for the help haha. So what I did to fix it was went to disk management deleted the volume then reformatted it. That was it