Papapitch

I have the same issue.my motherboard is ECS Z87H3-A3X with UEFI features & i have a ADATA XPG SX6000Pro 256GB PCIe 3D NAND PCIe Gen3x4 M.2 2280 NVMe 1.3 SSD I CAN SET UP WINDOWS 10 on it,but the problem is i cant boot that drive because i cant see the bdrive in bios boot option? can u pls help me or what can u suggest?should i modify my bios for me to be able to boot from that drive? by the way i use pcie riser NGFF for nvme ssd because the mobo has to slot nor nvme