Hi 505090, PsyKhiqzero,
Many thanks for your info, at last the drive is recognised in XP setup!!, it was simple in the end I assumed all 4 Sata drives would report the same conclution ,that is not the case merely moving it to Sata 4 from Sata 1 solved the problem !!
I did go through my owners manual with a fine tooth comb regards Sata and no mention of legacy mode at all, so resolved.
Many thanks both for your input best regards Mack......