There’s a ton of old rumors and “fixes” but it was recently confirmed by Microsoft that the main issue was failure of the flip chip interposer connections caused by incorrectly engineered underfill epoxy on early batches of GPUs. This is the same issue behind Nvidia’s Bumpgate and likely the PS3 YLODs.
BGA solder balls, x-clamps, thermal paste, overheating, etc were never actually a real issue. Heat gunning/towel tricking the console just warped chips enough that they temporarily made contact and would work for a little while. Only permanent fix is to replace the GPU with one made after they changed underfill epoxies.
Now that these consoles are 20+ years old there’s also aging caps and whatnot to worry about too.
There’s a ton of old rumors and “fixes” but it was recently confirmed by Microsoft that the main issue was failure of the flip chip interposer connections caused by incorrectly engineered underfill epoxy on early batches of GPUs. This is the same issue behind Nvidia’s Bumpgate and likely the PS3 YLODs.
BGA solder balls, x-clamps, thermal paste, overheating, etc were never actually a real issue. Heat gunning/towel tricking the console just warped chips enough that they temporarily made contact and would work for a little while. Only permanent fix is to replace the GPU with one made after they changed underfill epoxies.
Now that these consoles are 20+ years old there’s also aging caps and whatnot to worry about too.