Windows sees 2 m.2 nvme drives but bios only shows 1

I just built a new Strix Z370-i based PC with 2 M.2 nvme drives and only one shows up in the bios but after installing windows it recognizes both. I had planned to set them up in Raid0 but cannot find the 2nd drive in the bios.

Added the helpdesk tag, so people know you need help.

Good luck OP.