On nForce4, it depends. If he is not running RAID and is using the generic ATA drivers built into Windows XP w/ SP2, then Windows will pick it up with no problem. He can even do a fresh install of Windows on to his new SATA drive without a driver floppy. However, if he is running NV RAID he will need to provide a driver, either by F6 disk or slipstreaming, to access the drive.