Please make sure you have installed the operating system in RAID and not in AHCI.
You will need to access the BIOS and set the SATA mode to RAID in order to create a RAID or to accelerate your system with the SSD.
Please provide me with the Intel® RST System Reports; you can follow the steps to get the report here:
http://www.intel.com/support/chipsets/imsm/sb/CS-023487.htm?wapkw=rst+system+report
