m.2 nvme adapter

So, I am new to the scene of M.2 drives, and was trying to get an SN850X installed on my system and no matter what I do it will not show up anywhere. I've tried DISKPART, disk management, and made changes to several BIOS settings. I've even tried getting a PCIe 3.0 x4 card in case the M.2 slot...

I have an expansion card M.2 NVME to PCIe Adapter (3.0 x4) and will put an M.2 NVME SSD into it. What I plan on doing is to put this expansion card adapter into the second PCIe 3.0 x16_2 since I have a GPU with a PCIe 3.0 x16 interface currently in place at PCIe 3.0 x16_1 slot. Since the...