are these new drives fora new windows installation or for data onan existing system.
Either way you need to load drivers, if its a new installation you have to "hit F6" when asked for "third party...drivers" early in the installation.. If existing, you can do it within windows.
More system specs needed. I use gigabyte boards and can talk you through it.
if new installation you must use a floppy disk for drivers, if existing, then you can load drivers direct from the gigabyte cd.
with sata drives are you trying to create a RAID array or just 2 separate 80 gig drives each with their own drive letter?