XP doesnt support SATA or RAID out of the box, you will need to integrate your disk controller (motherboatrd/chipset) drivers into the install media using something like nlite.
Slipstreamijng is your only option as XP only supports loading the drivers from a floppy (which is very buggy anyway)
Slipstreaming is easy, its just you need another pc to do it from.
jbennet
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