I believe I figured it out. The M.2 connector was automatically disabled in the BIOS to allow another connection at high speed. It is now showing in BIOS.do that, but you may have to RMA the board
After much frustration, I managed to get it in (same as other mobo, just took a little bit more force. I was being too gentle I guess?) But the M.2 is NOT showing up in BIOS or Disk Manager, even after disconnecting all other drives.... Going to check in my other mobo BIOS and see if it showshhhhmmmmmm...bad M.2 socket maybe
The M.2 definitely works. Unfortunately, the board is many years old, so an RMA is far from an option. I am planning to replace the mobo, CPU, RAM, and GPU relatively soon however. Its just unfortunate I cannot move all of my things into the new drive until those things happen. Hopefully after a few re-seats it will pickup? I know electronics can be weird like thatdo that, but you may have to RMA the board
I believe I figured it out. The M.2 connector was automatically disabled in the BIOS to allow another connection at high speed. It is now showing in BIOS.do that, but you may have to RMA the board