What ports, color and number, do you have the drives connected to?
What do you want to run them as, AHCI or RAID?
What do you have set in the Integrated Peripherals BIOS page for the following settings.
Integrated Peripherals
Intel Controller (Blue Ports)
eXtreme Hard Drive (Intel ICH10R Chipset) ........................
ICH SATA Control Mode (Intel ICH10R Chipset) .....................
SATA Port0-3 Native Mode (Intel ICH10R South Bridge) .............
Gigabyte/J.Micron Controller (White Ports)
Onboard SATA/IDE Device (GIGABYTE SATA2 Chip) .............
Onboard SATA/IDE Ctrl Mode (GIGABYTE SATA2 Chip) ...........