Thanks for the response. I started out with only the USB drive attached and it wouldn't boot from that and it wouldn't boot from the SATA drive until I made some bios settings changes but I have not removed the SATA drive since it was able to recognize the drive. I will try that but the USB drive should show up in the priority list. Right now the SATA drive shows up and then IPV4 and IPV6 booting options.