Than you for your reply..
of course the older m8 works perfect on the 1.6er box. but the question ist already whether the hardware from the xbox can damage with this bios or not. For my needs (as an old tinkerer) the m8 is very useful. The XBOX Logos (the text) that are after the installation from the kernelbasher are for me the best reason. especially since I'm a fan of the SmartXX chip. So i can use the SmartXX LOgo. I know that sounds stupid, but the way it is.
Okay again to the beginning: destroy the bios (only the m8) my xbox or not? where can i get information about this bios? Are there yet anywhere websites where the bios has been tested?
Sorry that i asking so much, but this is a gem:


or is it not?