Ok, so my friend gave me his broken 360, and I fixed it with the help of this tutorial:
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I did not replace the x clamps though, I only removed the old thermal paste, put new paste on, and did the special overheat method that actually works (for those who are too lazy to read the link, they tell you that after replacing the thermal paste, that you should take the fans and place them over the CPU heatsink.
Since the temperature gauge is in the CPU chip, keeping it cool with the fan allows the GPU chip to really heat up without the system realizing it. This is both extremely effective and safe unlike the towel method or letting it overheat normally).
Now here’s my problem. I did the method, it worked, the system ran great for a few days, and then yesterday I got rrod again. So I used that overheating method again, and it is working again.
Am I going to have to repeat this process every 5 days or so for it to work? Is there a permanent solution to this? What exactly does overheating the GPU do?