I am using an ASUS H110-E/M.2 motherboard on my desktop with an ADATA SX6000 120GB M.2 drive installed as a system disk, with a 1TB Hard Drive as a storage disk. The system has worked fine for several months, but recently I installed an optical drive and moved my machine between apartments, and now I am having difficulty booting into Windows. It started after the move, and I reset the BIOS settings to default whiched fixed the issue. The next day it booted into the BIOS again, and resetting the BIOS settings didn't work, so I reseated the drive and that fixed the issue. The day after that (today), I tried both of those things but I still can't get it to boot.
A couple of things: When the drive is working correctly it is displayed as "ADATA XPG 6000.." with the capacity in parentheses in the BIOS, but now when I boot it generically says: "REALTEK RTS5761 NVMe Drive" with no information on capacity. The drive is also not reporting anything via SMART. I tried booting from a Windows USB drive and reinstalling Windows, but the drive showed up as 251MB, so I booted into the command prompt and ran diskpart which showed the same thing. Since I don't have any important information on the disk, I tried cleaning with diskpart but that also didn't fix anything. A couple other things I have tried are updating the BIOS and changing the CSM/M.2 configuration in the BIOS which doesn't do anything except make the drive not be recognized at all.
Any ideas on what I could do to fix the problem? What else can I try before I RMA the drive? Could it be an issue with the M.2 slot on the motherboard?
