The SSD vanishes when I insert my M.2 drive into the MB slot.
The SSD vanishes when I insert my M.2 drive into the MB slot.
I recently installed a new M.2 drive, but when connecting it to the PC, Windows doesn’t boot from the other SSD on the back. In BIOS you see only the new M.2, not the previous one. After removing the old M.2, the other two SSDs appear and Windows works properly. I’m having trouble getting everything recognized—anyone have any idea why this is happening?
Check the available SATA connections on your system. Identify the board model, the kind of M.2 drive you're using, and count the number of SATA ports connected.
What are your complete details? It seems your motherboard might restrict specific SATA connections depending on the M.2 placement within the slots.
On that device, ports 5 and 6 are turned off for M.2 devices, so use ports 1 through 4 instead.
The SATA ports 5 and 6 become inactive when connected with an M.2 device. These are the highest-priority ports. Verify that your existing SATA drives aren’t already plugged in there, and opt for the remaining four connectors instead.