Installed new motherboard and CPU, but the boot device isn't appearing.
Installed new motherboard and CPU, but the boot device isn't appearing.
He recently installed a new motherboard and CPU, but his boot device isn’t showing up while others do. I suspected Windows 11 might be the cause and checked his BIOS, but couldn’t find the UEFI setting—though it was marked as CSM. I attempted AMD CPU FTPM setup too, but the option wasn’t listed. A Reddit thread mentioned AM5 m.2 drives aren’t supported anymore, which could explain the issue. I’m unsure about the exact model of his drive, but he upgraded from Windows 10 to Windows 11 on an older machine and kept the same installation. He’s been using it for about two years now.
You might attempt to reinitialize the system, remove all but one external storage and reinstall Windows just to test. This process is valid for a single trial. AM5 is compatible with M.2 devices; although I’m not comfortable with UEFI, CSM settings, or TPM configurations, the reference guide I have could offer useful guidance. Here’s a detailed walkthrough for installing Windows on an NVMe card:
1. Ensure all SATA and USB drives are disconnected, leaving only the M.2 slot active.
2. Navigate to BIOS settings, locate the CSM option and ensure it’s turned off.
3. Under the Secure Boot section, select another operating system instead of Windows UEFI.
4. In the Key Management area, remove any existing secure boot credentials.
5. Use a USB drive containing a bootable Windows 10 ISO with UEFI support.
6. Press F10 to save changes, exit the menu, and restart the computer.
7. During installation, Windows will automatically detect your NVMe drive and install using its built-in driver.
8. After reboot, press F2 during startup to return to BIOS and adjust boot priority so Windows appears first.
9. Revisit Secure Boot settings, setting it to UEFI mode.
10. Go back to Key Management and install the default secure boot keys.
11. Press F10 once more to finalize installation.
12. Once complete, power off the PC and reconnect your remaining SATA drives.
Edited February 10, 2024 by leclod
As mentioned, it's advised to install fresh windows on a new board and CPU. Yes, switching from Intel to AMD is recommended, particularly if you have CSM only enabled—boot issues will occur. Windows 11 requires UEFI. Verify the M.2 slots in the BIOS; updating the board and BIOS settings can help. Enjoy the process!