I recently disconnected main hard drive from my motherboard but then I had to connect it back for reasons. I already knew it wouldnt boot up if I tried so I went into bios and tried changing the #1 boot priority to the hard drive. Unfortunately I can't do this because whenever I change it, it only shows my 2 other hard drives and not the hard drive I want.
Things I tried:
-Connecting it to a different sata connector on the motherboard -Made sure that they're properly connected -Cables are working fine and are not broken