When this happens, it means that more than one device is trying to use the same I/O port. Open the device manager and see if there are any yellow exclamation points next to any items. You want to ...

Additional info: rereading the mobo manual, I realized I had plugged the HDs into SATA 3 and 4. When the C: drive is connected to SATA 1 and to SATA 2, the machine doesn't even get as far as the BIOS.

If you see the error message Windows cannot find … Make sure you typed the name correctly on a Windows 11 PC, read this post to know how to fix the issue. It often ...