Sticking back to the original port, on IDE mode still causes problems? Well something's not right there...
You need to reinstall Windows I guess. Just reinstall it on AHCI mode so you won't have to do the Windows tweak. Make sure only the optical disk drive and the SSD is connected to ensure all boot files stay on the SSD. On the Windows install disk, delete all partitions including the system reserved one. The system reserved partition is where all boot files go to, and usually cannot be accessed via Computer.