The SATA drives will show as SCSI drives if you have an Intel ICH5-R and you load the Intel RAID drivers by pressing F6 during Windows install. These drivers are for running RAID Arrays and will not work with the ICH5 because it does not support this feature.

The drives will show as Intel 82801EB ultra ATA and run at DMA 5 which is normal because these are the drivers that Intel/Microsoft supplies with the OS (remember that SATA came out after Windows Xp and most other OS's). Also most SATA I drives are just PATA (IDE) drives with an SATA interface added to them (basically like adding a PATA to SATA adapter to an IDE hard drive and connecting it to the SATA connector on the MB).
edit: from abit forum