Switch from IDE to SATA2 without reinstalling XP

Hi-

I have an Intel DG965MQMKR MB with E6400 chip. I've found limited BIOS instructions one of which consited of: "SATA drives will be automatically configured and do not require any setting changes". However now that I've installed XP it shows that my drive is recognized as IDE (ATA/133), the BIOS also shows "IDE" mode for the Sata controller. So I have a SATAII controller and drive, but IDE speed. I can switch the BIOS settings to RAID, or AHCI but my drive does not have NCQ so AHCI is out. I hoping I can switch it to RAID and get the driver installed without reinstalling XP (I have the drivers on a floppy - and they have a "RAID Ready" mode for one drive).

So I guess my real question is do I have to start over to get SATAII speed or is there another way to get Windows to recognize a new drive configuration?

Thanks,
Bruce

If you take 2 identical drives but 1 with an IDE interface & 1 SATA they will run at the same speed.
Although the SATA interface has a higher ceiling it isn't the interface that is the limiting factor on performance but the drive mechanics.