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Both of my previous cars had door recalls. Ford Focus Mk3 and Prius Prime 2024. Yup. The door had weird failure cases that needed a recall. -------- Connect

Both of my previous cars had door recalls. Ford Focus Mk3 and Prius Prime 2024. Yup. The door had weird failure cases that needed a recall. -------- Connectors and cables is damn near Masters level in knowledge and application. Its a rarely studied and often ignored piece of engineering. The more you learn about them, the crazier it gets. That being said, this news that the 4090 and 5090 are using but one shunt resistor for all 6 power pins is horrifying to me. I'm not Power Engineer but it looks horrifyingly wrong to my napkin math. People underestimate the problems of physical design or the design effort needed to make good designs.

gloxkiqcza 2y ago
A bit off topic, but this is something HN might enjoy. It’s a video by a mechanical engineer that worked for Tesla, Apple and a NASCAR team about Tesla door handles over time. https://youtu.be/Bea4FS-zDzc https://youtu.be/Bea4FS-zDzc
- wing-_-nuts 2y ago
  I see content like this, and it inspires me for what I want my retirement to be like. Just some crazy old eccentric puttering about, tinkering in his workshop. I want my back yard to look like a solar punk world's fair.
BonoboIO 2y ago
Yeah, but we also have reliable mature connectors for decades, and they try to make new connectors and it’s not rocket science to transfer that kind of load.
immibis 2y ago
A card that draws 600 watts likely already has more than 6 phases of power conversion, so it could put a separate phase on each pin, and one more on the PCIe slot power, and then guarantee load balancing as well as being able to detect any single broken connection.
- dragontamer 2y ago
  Could do yes. But when Founders Edition cards made by NVidia are $2000 and the FE editions have no such mechanism, why would any AIB maker go above and beyond? You just make your cards more expensive and it's difficult to tell consumers what the difference is exactly.

gloxkiqcza 2y ago

A bit off topic, but this is something HN might enjoy. It’s a video by a mechanical engineer that worked for Tesla, Apple and a NASCAR team about Tesla door handles over time. https://youtu.be/Bea4FS-zDzc https://youtu.be/Bea4FS-zDzc

wing-_-nuts 2y ago
I see content like this, and it inspires me for what I want my retirement to be like. Just some crazy old eccentric puttering about, tinkering in his workshop. I want my back yard to look like a solar punk world's fair.

BonoboIO 2y ago

Yeah, but we also have reliable mature connectors for decades, and they try to make new connectors and it’s not rocket science to transfer that kind of load.

immibis 2y ago

A card that draws 600 watts likely already has more than 6 phases of power conversion, so it could put a separate phase on each pin, and one more on the PCIe slot power, and then guarantee load balancing as well as being able to detect any single broken connection.

dragontamer 2y ago
Could do yes. But when Founders Edition cards made by NVidia are $2000 and the FE editions have no such mechanism, why would any AIB maker go above and beyond? You just make your cards more expensive and it's difficult to tell consumers what the difference is exactly.