I recently bought a Samsung 980 1tb m.2 nvme ssd to install in my system (i5-4690k, Gigabyte z97x-GAMING 5 mobo).
I've disconnected all other SATA drives that were plugged in, but for some reason the M.2 drive is not listed as a bootable drive in the BIOS, even after clearing the CMOS.
I have...