Bill -
Dear Harish:
They are internal SATA drives.
I am assuming your system has something like what is shown in
this [0]. And that there is already a cable connecting the drive to
the board. Then there is nothing else to do except to check within
your BIOS to see if the drive is enabled as well.
[0]
http://s32.photobucket.com/user/KKilme/media/Resources/sata-on-mb-empty.j...
[0]
http://wiki.pcworld.com/index.php/Installing_SATA_hard_drives
Harish