Proposed new Power Connector

OneMoar · 2025-02-13T07:42:56+0000

a couple resistors fixes this problem

Bomby569 · 2025-02-13T07:48:00+0000

OneMoar said:
a couple resistors fixes this problem

but some ticker wires and a second connector or extra wires wouldn't hurt. But to be clear i also think they are not the issue, but for some extra precaution as this connector is stretched a bit too much

Chrispy_ · 2025-02-13T11:10:22+0000

qxp said:
They did work, which is good, but they were a kludge solution. You are providing +12V using 3 wires instead of one. Why ?? No reason. The right way is to up the voltage and use one wire for positive and one for ground.

Upping the voltage isn't possible though; We've already covered that it needs to stay 12V.

12V power is enough to start a car at 300Amps, provided the wiring is correctly gauged and connected - so it's not a case of 12V being unsuitable, it's a question of picking the appropriate wiring, connectors, and current-balancing across multiple cables.

Yes, 48V would solve the issue of high current over cheap wiring and cheap connectors nicely, but it would cost a lot to implement, cause huge disruption to people who don't benefit in any way, and be of actual use to a vanishingly-tiny proportion of people. Clearly, the answer to solve GPU power for the rich and wealthy is to stop penny-pinching on these stupid cheap wires and cheap connectors.

14AWG wiring and more 12V pairs brings us back to the same safety margins as PCIe and EPS 12V

Assimilator · 2025-02-13T11:31:18+0000

Chrispy_ said:
Upping the voltage isn't possible though; We've already covered that it needs to stay 12V.

No it doesn't.

Chrispy_ said:
12V power is enough to start a car at 300Amps, provided the wiring is correctly gauged and connected - so it's not a case of 12V being unsuitable, it's a question of picking the appropriate wiring, connectors, and current-balancing across multiple cables.

With a cable as thick as a finger, which isn't a problem due to the form factor. A cable that thick is a problem in the PC form factor.

Chrispy_ said:
Yes, 48V would solve the issue of high current over cheap wiring and cheap connectors nicely, but it would cost a lot to implement, cause huge disruption to people who don't benefit in any way, and be of actual use to a vanishingly-tiny proportion of people.

Wrong, wrong, wrong. 48V wouldn't be an opportunity to increase the current over existing connectors, it would be an opportunity to do away with all of the legacy connectors and their cruft. 3.3V wires? Gone. 5V wires? Gone. EPS12V? Gone. PCIe 6- and 8-pin? Gone. Your PSU has one connector that plugs into the motherboard and drives everything (including USB-C power delivery), it has at least one connector you can plug into your high-end GPU, and that is it. It's what ATX12VO should have been.

Fewer, safer connectors are good for everyone, not just enthusiasts.

Chrispy_ said:
14AWG wiring and more 12V pairs brings us back to the same safety margins as PCIe and EPS 12V

This is still a band-aid over the underlying problem. Stop it with the band aids! They are exactly how we got into this nonsensical situation!

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Proposed new Power Connector

OneMoar

There is Always Moar

Bomby569

Chrispy_

Assimilator