Question SN550 not showing up

[jams6]

Hi all
I have 3 SATA Devices: 2 SSDs and 1 HDD

Mobo: ASUS ROG B550-f

I just received and installed my WD m.2 NVME.

I put it into the bottom m.2 slot (m.2_2 I think), and booted up.
I don’t see it on my computer, though it shows up in Device Manager. Not in Computer, or in Disk manager.
Has anyone experienced this?
How do you fix it?

 

[Lutfij]

Did you make sure you're on the latest BIOS version for your motherboard prior to dropping the SSD into the system? What are the make and model of your SATA devices and how are they connected to your system? I asked since there are SATA based M.2 devices. Does it show up in BIOS?