hi, i have an asus deluxe ii motherboard, and im using an evo 850 as my boot drive, and a evo 960 m.2 as a fast storage option for writing video. I accidentally tried to write too much on the m.2 and got an error notification in premiere saying it was out of space; I proceeded to delete a few video files and then rebooted the computer.
I have not been able to see the m.2 drive ever since.
I tried disk manager, I tried posting bios, I tried taking it out and reinserting it, and at this point i'm not sure what else to do. Its unclear to me whether it is truly "detectable" in Bios because twice I saw it there and twice I did not... if someone could give me some specific instructions on how to determine if the evo 960 m.2 drive has failed, or if it is an issue with that port on the motherboard, I would be SO APPRECIATIVE! thank you so much 
I have not been able to see the m.2 drive ever since.

