Question PC boots to Windows but will occasionally boot to the BIOS ?

[xCasper44]

Hello I need help with my PC, the motherboard is a Gigabyte A520M K V2

Whenever I turn my PC on it will sometimes boot into Windows and other times it boots into the BIOS and it shows that there's no boot device found, and when I go to the M.2 area it shows "M.2 : N/A"
I'm not sure if it's my SSD or my motherboard.

Please help, thank you

 

[helpstar]

BIOS and firmware of the motherboard and SSD up to date?

M.2 is correctly seated into the M.2 slot?

Which M.2 SSD is it?

Did you run the manufacturer´s tool to check the SSD while in windows?