It had a jumper to limit data transfer to 1.5 gb, I haven't looked at the Bios settings thought not sure there is setting for it in there but I will check when I get home.
That sounds logical though.
Thanks
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Lifes too short to drink cheap beer
1) For SATA drives you must make sure that the drive supports 1.5 gb/s - most of the newer drives are 3 gb/s but permit downgrading by either jumper or software.
2) If it doesn't recognize your SATA you must upgrade the bios - by modifying the bios for the motherboard by slipstreaming the silicon image bios for the sata controller. it's sounds bad but is easy. see the second post here which gives you the instructions: ASUSTeK Computer Inc.-Forum- Windows is not detecting my SATA drive (but use the latest a7n8x-3 deluxe bios you download from asus, not the one in the example)