I have a ASUS M3N78Pro with a SSD drive for OS and 2TB sata drive for data storage. I am attempting to add a new 2 TB sata drive, so I can mirror the first data drive with it. I cannot get the new drive to be recognized by the bios. It a new drive (unformate). I attempted to add another 1.5TB new drive as a test and it is not recognized either. Neither new drives show in bios.