M2 not showing in bios when starting a complete new PC

So my Brand new pc just has one m2 and its not showing up in bios or in windows installation what can be the reason the important specs are: Mainboard: MB MSI B550 Gaming Gen3 So.AM4 Dual Channel DDR4 ATX Retail

M2: SSD 500GB MSI Spatium M450 M.2 2280 PCIe 4.0 x4 3D NAND

Bios update is done its the newest