I got a Windows 7 Sata 80 gb Hard Drive that boots. My old computer has a 500 gb XP sata drive that i wanted to make the slave but when I added it as secondary my system loads to the XP boot but does not boot XP. I even disconnected my sata Windows 7 boot drive. But my Windows 7 boots fine without the XP secondary sata drive connected. How can I add the XP as a slave drive to my Windows 7 boot drive with Sata