So, here is what I am working with:
I have an Asus motherboard with 6 on-board SATA controllers. I have 2 of the drives configured for RAID 0 as my C drive where Windows 7RC is installed. I have 1 IDE hard drive and 1 DVD-R drive running off of the IDE controllers. As long as I leave this configuration, I have no problems.
The problem comes when I try to install my additional SATA drives. As soon as I plug in another SATA drive, Windows will not boot. It gets to the Windows Logo screen and hangs forever. I tried plugging the drive into a different controller and the same thing happens. I tried every combination I could think of with the 6 different SATA controllers (i.e. using SATA controller 0,1 for RAID or 1,2, or 2,3, or 5,6....and nothing seems to work.