http://www.aussiechip.com.au/index.jsp
Pues estos chicos australianos que venden chips se han decidido a dar los esquemas para la construccion de su chip DualMod que lleva una bios como backup por si nos cargamos la primera.
AussieChip has decided to release all of our modchip designs back to the Xbox community so that other people can use them for their own projects.
Both the AussieChip DualMod and our own CheapMod design are now available for free download.
More information about our modchips, and a link to the Protel PCB files, is available by clicking on this link.
Remember, you don't have to build them yourself! You can purchase the DualMod right now at our online store