your hd's connect to idep the slot next to the memory slots, the colored end on the ribbon plugged in the bottom. enter your bios. ,main, pri master ide tap to detect the hd, pri slave tap to detect the cd drives. exit and save.
your manual download is here
ftp://dlsvr03.asus.com/pub/ASUS/mb/s...337_a8v-mx.pdf
post again if any problems.