A while back I purchased an Intel Extreme Board DZ77GA-70K, connected to it an SSD (non-raid) for operating system, an LG optical drive for installation and data transfer, a hot-swap bay for repair or setup, and 4 SATA HDD (raid) for data storage. These 7 devices were connected up to 7 of the 8 SATA ports available on the motherboard. Recently, my Windows 7 Ultimate system became unbootable, even after attempting checking the SATA configuration, Startup Repair, Memory Diagnostics, System Restore, and Command Prompt with a few choice commands SFC /SCANNOW, BOOTREC /REBUILDBCD and BOOTREC /FIXMBR but without any satisfaction. I thought that maybe the BIOS needed to be updated, so I searched for the latest BIOS version and proceeded to successfully update the BIOS. But, once I accomplished this I found that even though the option to enable the Secondary SATA was functioning, configuring the Secondary SATA was not. What am I to do? Please help.
Let see if this workaround solves the issue. Get into the BIOS, reset the settings with F9 then, safe changes with F10. The latest BIOS version is 0066. It is available in the link below.