There is only 2 SATA3 6.0gb/s ports on x58a- ud7 board. Several people spoke about the poor performance of the RAID on this Marvell 6.0gb/s controller
http://forum.giga-byte.co.uk/index.php/topic,1587.0.htmlOther ports are standard SATA2 3.0gb/s (6 - ICH10R and 2 - Gigabyte SATA)
I think there is no reason to use standart HDD on SATA 6.0gb/s ports (even they have SATA3 interface it is no big increase in speed)
There is only one
"real" SATA 6.0gb/s drive today - Crucial Real SSD 300