I got a hand-me-down 120GB OCZ Vertex 3 drive from a relative. Seems perfect for upgrading my little linux HTPC. The hardware is an MSI Cubi. Had a 60 GB OCZ drive in there previously, worked well enough but sometimes I ran out of drive space. So I install the drive, put Mint on a USB stick and get it all installed. That all went fine. But when I go to reboot after removing the USB stick suddenly the BIOS won't see the drive. Weird. So I have: repartitioned, formatted and checked the drive from the Mint installerdownloaded the OCZ SSD Utility and checked the drive; it says it is fine, health is at 97% updated the drive's firmware (with the OCZ utility)reinstalled MintStill, the drive is not visible from the BIOS. I did see the drive from the BIOS one time when I went in to the BIOS screen but it was not available to boot from when I rebooted. Any suggestions? What are the properties of a drive that make it visible in the BIOS? I've never had an issue with this before, built probably 6 computers from scratch. 
What would cause a drive to be visible in Linux but not in the BIOS?
partition;hard disk;gparted;bios