Actually, I have the same motherboard, and the nforce 4 AMD drivers caused some problems with the controller. I finally changed to the nforce4 professional drivers and they have worked great so far. Like the others, I thought the AMD version would have been the right one. Check your device manager, you should see 2 NVidia Nforce Serial ATA drivers and one Parallel driver under . If you have any Microsoft drivers there under IDE ATA/ATAPI Controllers, then you've got the wrong drivers.