QUOTE(Heimdall @ Jun 6 2012, 06:04 PM)
...and therefore the eeprom is almost certainly your problem, as I said in my last post but one. Reflash it, reflash with a completely different eeprom, make sure it's the right version for your Xbox (1.6 eeprom contents are different).
I'm almost certain there isn't a temp sensor trace - I think it's in-band, or memory mapped, or maybe on the i2c bus.
I think I've solved! aaaand yes...was an eeprom problem! I dessoldered it completely from the motherboard, I soldered one from a v1.0 xbox, with the eeprom programmer and icprog I wrote my eeprom.bin backup... I turned on the xbox and...tadaaaan! no more frag! I'm playing chaos teory without problems!
Thank you so much for all your help!!
p.s: sorry for my veeeery horrible English