Oof, I just had a big scare with my 360. My console is configured to automatically boot discs, so I powered it on by pressing the disc tray button, inserted Dead rising, and closed the tray. The TV screen stayed black, but I could still get to the small xbox button menu. I rebooted with the power button, it worked and went to the title screen, which froze. Believing something wasn’t right with the disc, I ejected it and rebooted the console without the disc, while I was cleaning it (it was super dirty, greasy).
The console powered on fine, but there was visual glitches on the dashboard and as soon as I inserted the disc again, the console froze. I thought the disc was dead so I took it away, and tried another disc. Same behaviour, glitches and freeze when I start using the drive. After another reboot, this time the power button became red instead of green, with an error code on the TV. I forgot to write it down but rebooted again, this time there was no error code, but the screen stayed black and the power button was still red.
I thought my console was dead at that point. I remembered the red ring of death of original Xboxes (even though I have a Slim) and I touched the ventilation area, to find it was piping hot! the fan never sped up the entire time, was still running at low speed. I took the console out of the shelf and let it cool down for a bit. After that, I was able to start it again and it behaved fine. I tried a game, the fan spun up properly. Then I tried Dead Rising again, cleaned, which booted fine, fans up and everything.
I don’t know what happened, but maybe the combo of booting the console + starting a game + connecting the account to live + trying to read a dirty disc messed up the boot sequence, which stopped the fan control, which led to the cascade of glitches and freezes and error messages / lights? I don’t have an explanation. Maybe the console is on its last leg may break again at any time? I just played Dead Rising for about 20 minutes without a problem though.
The lack of fan spinning loudly is something I didn’t notice at first, because I didn’t use the console for about a week and everything else is quiet in my gaming setup, I’m still not used to a console being noisy while gaming. But hearing the fan spun up correctly at the end mad me notice the previous silence.