Looking at the specs for the GIGABYTE GA-Z77X-UD5H LGA 1155 shows RAID being mentioned in the “GIGABYTE EZ Smart Response” technology. Then looking at the page detailing “GIGABYTE EZ Smart Response” technology explains; emphasis is mine:
About GIGABYTE EZ Smart Response
The GIGABYTE EZ Smart Response utility is a simple application that
allows users to quickly and easily configure their system for Intel®
Smart Response Technology. In the past, enabling Intel® Smart Response
meant users needed to enter the BIOS in order to configure their
system for RAID mode, which then required a complete reinstall of the
operating system. Once that processes was complete, users then needed
to install the Intel® Rapid Storage Utility as well as configure
Intel's Smart Response Technology. GIGABYTE EZ Smart Response does all
of this automatically, without users having to perform a complicated
install process. This allows them to quickly and effortlessly enjoy a
significant boost in system performance.
And looking at this download page shows:
EZ Smart Response Technology
- Version: B11.0714.1
- Date: 2011/07/15
So to my eyes, it seems like the “GIGABYTE EZ Smart Response” utility is the key to solving this issue on your side.