I have a 2008 Mac Pro 3,1 and I'm working on doing a 4 drive raid 0 set up for my Mac Pro. Currently, I have a drive in bay 4 for Windows 7. I got a sata cable and a molex to sata power adaptor to try using one of the extra sata ports under the front fan for a Windows 7 drive. I was going to get a 5.25 to 3.5 bay adaptor to run the hard drive in my empty dvd drive bay. However, after doing a test with a spare hard drive, it seems Windows will not recognize the drive running off of the sata ports under the front fan. It works fine under OS X as a backup drive, but windows doesn't show the drive in the installer for the os. Is this a hardware limitation? Can I only use the 4 main drive bay's sata ports as boot drives? Or is there a way to boot off of the auxiliary sata ports?