I recently got a Asus M5a78l-M/USB 3 Motherboard and I had a Seagate 2 TB HDD I was gonna use with it but it wont boot up to windows. A black screen shows up and a white underscore sits there blinking. The hard drive shows up in the boot device and boot menu but not in the Asus EZ Flash 2 tool in bios. The HDD came from an HP Pavilion 500-314. I already know it isn't corrupted as I have already ran memory tests and you can access the files when using it as a second drive.