• 0 Posts
  • 77 Comments
Joined 1 year ago
cake
Cake day: June 20th, 2023

help-circle

  • I’m sorry but this is just a fundamentally incorrect take on the physics at play here.

    You unfortunately can’t ever prevent further breakdown. Every time you run any voltage through any CPU, you are always slowly breaking down gate-oxides. This is a normal, non-thermal failure mode of consumer CPUs. The issue is that this breakdown is non-linear. As the breakdown process increases, it increases resistance inside the die, and as a consequence requires higher minimum voltages to remain stable. That higher voltage accelerates the rate of idle damage, making time disproportionately more damaging the more damaged a chip is.

    If you want to read more on these failure modes, I’d recommend the following papers:

    L. Shi et al., “Effects of Oxide Electric Field Stress on the Gate Oxide Reliability of Commercial SiC Power MOSFETs,” 2022 IEEE 9th Workshop on Wide Bandgap Power Devices & Applications

    Y. Qian et al., “Modeling of Hot Carrier Injection on Gate-Induced Drain Leakage in PDSOI nMOSFET,” 2021 IEEE International Conference on Integrated Circuits, Technologies and Applications



  • The “problem” is that the more you understand the engineering, the less you believe Intel when they say they can fix it in microcode. Without writing an entire essay, the TL/DR is that the instability gets worse over time, and the only way that happens is if applied voltages are breaking down dielectric barriers within the chip. This damage is irreparable, 100% of chips in the wild are irreparably damaging themselves over time.

    Even if Intel can slow the bleeding with microcode, they can’t repair the damage, and every chip that has ever ran under the bad code will have a measurably shorter lifespan. For the average gamer, that sometimes hasn’t even been the average warranty period.













  • I actually had one of these myself. I worked at a college help desk as a student, and I got a call and the guy said “every time I flush the toilet, Xbox live disconnects”

    My first thought was that it was a joke, the absurdity of the thing right? I unironically asked if I was being pranked, and he said he knew we wouldn’t believe him so he made a video. Sure enough, he walks into the bathroom, flushes the toilet, and like 5s later his Xbox shows a disconnection message on the TV.

    Absolutely dumbfounded, I sent the networking guys up to his room, and like all of these stories, it does have a reasonable explanation. They ran the xbox’s Ethernet cable under a rug that was in front of the bathroom. Every time someone went to the bathroom, they would step on the cable, and the Xbox would disconnect. The timeout was 30s or so, just long enough that they’d pee or flush the toilet or whatever before they noticed the disconnection.