I am trying to mdo my xbox. I bought the xecuter 2.2 pro and a western digital 120gb HD. I have the evox bios. And using Slayer's auto install 2.5 to do all that. My question is, What do I need to do inorder to set up my xbox so I can turn of the mod chip and everything would work as if I and a OEM xbox. I know I have to have a on/off switch. Do I have to have the origianl bios installed? If, so Where do I install it meaning I'm going to be flashing the chip with evox. Also I am doing to be taking out the Hard Drive and putting in the 120GB?