Hey eXo sorry for dropping out on you like that. I managed to fry the version 1.0 motherboard that I was going to install the switch on

Make a long frustrating story short I've been through quite a few xbox's since but I have successfully flashed Cromwell to one bank on my new v1.0 TSOP and I kept the original bios on the other bank. Instead of getting two HD's in there I just use loopback file installs, right now I have XDSL v0.5 v0.6 v0.702 beta and Gentoox.