Something very important is to verify that the hard drives are connect to the blue or the black SATA ports, since the gray SATA connector is multiplexed with the mSATA, that means that you are able to use the mSATA or the gray SATA, but not both at the same time.
- Make sure you have the latest BIOS version installed on your system. Please go to http://downloadcenter.intel.com/ and check for the latest BIOS available.
- Finally, try removing the CMOS battery and leave the system without it for about an hour. Then put it back on and restart the system. http://www.intel.com/support/motherboards/desktop/sb/CS-028780.htm?wapkw=clear+cmos+battery#datetime