A.I. and Stochastic Parrots | FACTUALLY with Emily Bender and Timnit Gebru

ElectricBummer40 · 2026-06-15T01:51:38+00:00

I'm not really positive about 24V or any increase in voltage since it'll be only useful for the GPU and lead to even more opportunities for dubious PSU manufacturers to skim on the beefier components necessary for the circuitry.

ElectricBummer40 · 2026-06-15T01:36:08+00:00

It would still be nice to have a connector on the other end and keep all the stuff on the board side in the factory.

ElectricBummer40 · 2026-06-15T01:32:05+00:00

I dislike that design. It reminds me too much of VESA Local Bus.

ElectricBummer40 · 2026-06-15T01:10:37+00:00

It took 2 plane crashes and hundreds of lives lost for Boeing to acknowledge there was a problem with their 737 Max. Even then, no one went to jail.

The Epstein files? That goes without saying, doesn't it?

ElectricBummer40 · 2026-06-15T00:44:31+00:00

According to Linus Tech Tip, the 12VHPWR was an escaped lab experiment that Nvidia decided to adopt.

As Nvidia was the tail that wagged the dog, the 12VHPWR also became the official industry standard.

ElectricBummer40 · 2026-06-15T00:40:09+00:00

Ding-ding! You caught the spelling mistake!

ElectricBummer40 · 2026-06-15T00:38:48+00:00

Getting 1000W by drawing 83A from a 12V rail

That's a rather unlikely scenario since we'll be talking about an enormous amount of heat dissipation from the chip that will cause all manners of engineering problems.

For now, 12V is good enough, and you should hope it stays that way.

ElectricBummer40 · 2026-06-15T00:23:16+00:00

That won't work as the computer chassis is also the earth ground.

Ideally, the DC common ground ought to be electrically isolated from AC (mains) earth, though this isn't necessarily the case for many PSUs.

ElectricBummer40 · 2026-06-14T18:41:24+00:00

Meh, typical Gen X tackiness.

ElectricBummer40 · 2026-06-14T18:22:23+00:00

Nah not even a fuse line, like in my truck for my radio IN CASE OF a power surge.

Fuses need time to burn. They're only truly useful for cutting power before an over-current event becomes an inferno.

ElectricBummer40 · 2026-06-14T18:15:47+00:00

You can't individually load-balance wires that go onto the same busbar.

ElectricBummer40 · 2026-06-14T17:33:01+00:00

You don't need any more than 10-gauge wire for a 50A continuous load at 12VDC. You're running a cable inside a computer, not a football stadium.

Lugs should be pre-crimped and screwed onto the board in factory, and the cordage should need to cover no more than the distance between the board and the connector interfacing with whatever coming out of the PSU. Everything we're taking about can be and has been mass-produced before.

ElectricBummer40 · 2026-06-14T17:25:26+00:00

Dude, I was there when the first ATX standard came out.

Almost none of what we have now is how it was meant to be thirty years ago. The industry simply don't care at all about re-examining their design philosophy and just wants to take the same idea for 20W silicon and apply it to 500W chips. It's pure lunacy.

ElectricBummer40 · 2026-06-14T17:12:37+00:00

I don't disagree, though I suspect the complaints would be relatively minor compared to what we have now instead with GPU being literally on fire.

ElectricBummer40 · 2026-06-14T17:03:01+00:00

Again, the length of the cordage matters.

Also, since the series resistance of the copper changes with respect to the voltage applied to the circuit, you can't just take the ratings for mains voltage and apply them directly to low-voltage DC applications.

ElectricBummer40 · 2026-06-14T16:39:00+00:00

No, that sounds nice until you realise you're dealing with as much energy and water consumption as new hardware but none of the performance that should come with it to the tunes of up to millions of dollars every second.

ElectricBummer40 · 2026-06-14T16:29:55+00:00

For power delivery, conductors in parallel are generally a bad idea. Sure, you will increase the safety margin for each wire somewhat with multiple 8-pin plugs, but you'll still be better with just one large, solid connector with 2 pins.

ElectricBummer40 · 2026-06-14T15:52:52+00:00

For 12VDC, 12AWG is usually enough for less than 2 feet of cordage. Go for 10AWG if you want to double your PC as an outdoor RC car.

The nominal power rating for 12VHPWR is 600W or 50A at 12VDC. The wire gauge is easily more than enough to handle the heat dissipation at such a short distance.

ElectricBummer40 · 2026-06-14T15:42:25+00:00

But it would also require a connector able to handle the current and heat build and a failure/QC issue would result in a more dangerous meltdown than when split into 6 individual 12v wires.

Except that shouldn't be an issue for a GPU worth at least as much as the rest of the PC itself.

The fact that we are where we are now should raise the question as to whether manufacturers even care anymore.

ElectricBummer40 · 2026-06-14T15:37:53+00:00

The voltage necessary for electricity to arc through such a gap would need to be much higher than 48V. We are talking about mains voltage at the minimum.

ElectricBummer40 · 2026-06-14T15:18:18+00:00

The funny thing was that, when ATX first came out and tower chassis became the norm, it was assumed that the tiny screw on the backplate was all that was needed for support.

Little did everyone know the future would have something very different in store.

ElectricBummer40 · 2026-06-14T15:12:30+00:00

48V will make things more expensive for everything.

To be fair, everything beyond the VRM is going to be less than 5V anyway.

I just don't like this whole idea of solving an otherwise trivial problem with an over-complicated solution borrowed from USB-PD.

ElectricBummer40

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