I’ll try switching cables as a last resort, but since the BIOS correctly identifies the drive I think it’s either a BIOS specific setting or a Windows setting or driver issue. The system came with Windows 7 or 8 and reading around the web, pre Win10 OSs had some issue with recognizing new SSDs and they needed a registry hack to get the OS to see new drives. But that’s old info.
Thanks for the suggestion.
