SATA doesn't use master/slave setting as the technology only allows for 1 driver per channel right now, it's not neccessary. If you want to use the SATA drive as your main drive, then you'll want to disconnect the PATA drive while installing windows, otherwise due to a glitch, it will still put the master boot record on the PATA drive. Then you'll need to set the SATA drive as the bootable hard drive in Bios. After you boot into windows with the sata drive once, to make sure it's all set up correctly, you can then hook the PATA drive back up.