Hardware/Firmware problems. If your drive was previously modded, then the new XBL update could be causing this. Or your 360 could have just kicked the bucket.
Just wondering if anyone knew the cause of the 3 rrod, only 3 not 4
Thanks
my old one got 3ring then im like fuck it put dat bitch in the trash...
my friend sent his xbox from like 07 in because of RROD and microsoft sent him an elite...