Quote Originally Posted by cash_site
I got an old XBOX too, version 1.5or 1.6... tried looking into kernals for it, but got confused with the different versions, and bioses etc etc... what's the best for it BB?
The one I am using is the Xecuter 2.3b pro, but the newest 3.0 Xecuters are the shiznit. I use the Xecuter 4981 series Bios for it. It is older but it proves stable for me.

http://myweb.tiscali.co.uk/thedefinitivedvd/xbox01.htm

But if you are getting a new modchip I recommend getting the latest BIOS

http://www.teamxecuter.com/

Has all the BIOS info, but to download them you have to got IRC.