Finding a CPU Design Bug in the Xbox 360

(randomascii.wordpress.com)

58 points | by mariuz 4 days ago

2 comments

  • chasil 1 hour ago
    It is interesting that IBM dominated this generation of consoles, and was vanquished in the next.

    The high failure rates of the Xbox 360 did not help.

    https://en.wikipedia.org/wiki/Xbox_360_technical_problems

    • vondur 58 minutes ago
      I thought the design flaws of the Xbox 360 cooling system had more to do with Microsoft than any inherent design flaw by IBM. I assumed that switching to x86 processors let Microsoft leverage their native developer tools from Windows which helped developers.
      • chasil 57 minutes ago
        The main issue was revealed to be solder.

        "Microsoft did not reveal the cause of the issues publicly until 2021, when a 6-part documentary on the history of Xbox was released. The Red Ring issue was caused by the cracking of solder joints inside the GPU flip chip package, connecting the GPU to the substrate interposer, as a result of thermal stress from heating up and cooling back down when the system is power cycled."

        • timw4mail 24 minutes ago
          And there was the same problem with early PS3s, on Nvidia's GPU package...it was a fairly widespread problem at the time.
          • hbn 5 minutes ago
            I don't have any solid numbers on me, but I believe early 360s failing wasn't just widespread; it was straight up most of them dying within the first couple years. It's honestly insane they more or less got away with that. And I guess also speaks to how much Microsoft was killing it in that era that people were willing to go through multiple console RMAs (which I heard was a terrible, slow, and unreliable process) to play 360 games. How far they've fallen.
          • rwmj 7 minutes ago
            And Apple iBook G3s too. There's a whole thing with owners reflowing the GPU: https://www.instructables.com/Fixing-the-infamous-iBook-scre...
        • thenthenthen 34 minutes ago
          Sounds like the 2012(?) Macbook Pro after the switch to leadless solder (?). I had to cook my motherboard 3 times in the oven to revive it.
  • jszymborski 1 hour ago
    Would need "(2018)" in the title.