Chosen Solution
Like the title says, my xbox seems to turn off only when I play games. I had it idling on the home menu for about two hours, but 10 minutes into Forza 5, it shut off by itself. If I attempt turning it back on afterwards it turns itself off again. The only way for it to turn back on is to unplug everything and leave it overnight. I’ve opened literally every part of the xbox including the PSU and blew out all the dust I could find. I’ve tried power cycling and factory resetting and nothing seems to work. The heatsinks never seems to get excessively hot when playing games so I’m not sure if the issue is caused by overheating or not.
you said heat sink doesn’t get super hot. this is bad. the heat sink is supposed to be very hot because that means it’s doing its job, that it is transferring heat away from the main processor. you said you cleaned out dust, did you re thermal the processor? especially if you removed the heat sink, it will need new thermal paste. if it still shuts down randomly at that point it is most likely either HDD or Mobo issue
I have the same problem. Have you fixed it?
