This may be related to BUG# 257790
Problem: [K|U]buntu (including Live disk) does not see new SATA drive. This is a new system. Windows caught it and initialized it. Kubuntu was successfully installed on the original SATA drive. The new, second SATA drive is accessible via an external harness through the USB port, but not through the internal SATA connection to the mobo port. Swapping the cables around did not help. AWARD BIOS version is current. Others have related similar problem in the past but their various corrections escapes me. QTparted doesn't see it either. Thanks for any suggestions.