The M.2 storage device stopped functioning as a boot source.
The M.2 storage device stopped functioning as a boot source.
I updated my system with a new HDD and SSD, powered it up, and entered BIOS by accident. The resizable bar wasn’t active, so I enabled it. My old M.2 slot displayed correctly as a boot drive initially. After restarting and pressing F10, the system went back to BIOS but no bootable drives appeared. I searched through my ASUS BIOS but found nothing changed. I used a Windows installation tool to try fixing the setup, but it didn’t recognize the Windows install. Eventually, I reinstalled everything on the new M.2 slot, and everything from my previous drive remained intact. What might be happening?
What specifications are included? Removing the new drive affects functionality—see if the system recognizes the previous one. Refer to your motherboard guide for PCIe lane details and M.2 compatibility. Certain boards may block specific ports if another uses all available PCIe lanes.
It seems like you're dealing with an Asus Prime B550m-A. You mentioned pulling everything out, which is tough but you're checking the manual. Right now you're unsure about boot options for the M.2 slot and noticed a link mode reference. A quick search didn't help much. What you're looking at is likely related to the internal setup of this specific model.
Another similar issue—transferring files from my old 12TB storage to the new 20TB drive is taking a while. The speed is stuck around 1–3 MB/s, then jumps up to about 200 for a bit before dropping again. I'm currently at 1% of the 100,000-item task and it estimates 2.5 hours to finish. Is this typical?
It was revised around last month. Both connections use SATA ports, which is confusing. I've always thought the 12TB drive was a bit sluggish, but I didn't pay much attention to it before.