it has to be the eeprom, HDD, or some other number on something else in the box, maybe the video chip or something do they have id's as well, how many people upgraded there ram, can live detect that, i dont see why they couldnt, ive never been banned, only once and i did it on purpose to test cause i only had 17 days left on a 2 month trial after M$ couldnt renew my first live account cause i cancelled the credit card i started it with, i had about 3 1/2 months free service, then got cut off so i used a 2 month trial,
after that i got a new box used it for live only for like 8 months, just modded it 3 weeks ago and tossed in 160gig, played tons of madden and nba live battle front, all on live, and have a save of some wierd french game. just looged into topspin now looking for a game, no problems at all
there has to be some other id # that is being matched along with the eeprom
whether it be the cpu or gpu who knows, would that be possible ?