News Corsair expects Nvidia's RTX 50 series will retain the 12V-2x6 power connector — Next-Gen GPUs could consume well over 450W of power

chaz_music

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Dec 12, 2009
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They really need to think about raising the voltage in that interface to drop the current down from what is needed at 12V. Unfortunately, UL does not consider anything above 30V as touch safe. So ~28VDC? That drops the current down to 43% for the same power level, or 16A for a 450W load.

But the fact that we have these connectors burning up at this power level and no homes have been burned down (yet) indicates that UL has done a great job choosing the best insulation material to prevent fires, rated 94V0 (typically Nylon). If those connector shells had been made of something cheaper like PVC or ABS, it would be a different story.
 

Eximo

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They really need to think about raising the voltage in that interface to drop the current down from what is needed at 12V. Unfortunately, UL does not consider anything above 30V as touch safe. So ~28VDC? That drops the current down to 43% for the same power level, or 16A for a 450W load.

But the fact that we have these connectors burning up at this power level and no homes have been burned down (yet) indicates that UL has done a great job choosing the best insulation material to prevent fires, rated 94V0 (typically Nylon). If those connector shells had been made of something cheaper like PVC or ABS, it would be a different story.

I'm all for a 24V PSU or the like, but that would be a radical change to ATX and require a pretty harsh changeover. You think adapter cables are bad, wait until it has a 12V to 24V boost converter inside of it.
 

YSCCC

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with the 12V 2x6 it should be fine for most, but I do think the placement of the connector will need to be thought over more carefully, the old 8pin is "safe" coz it carries much lower power per pin so even partially unseating it wouldn't be a problem, and that the cable itself is soft enough to bend pretty tightly for cable management in smaller cases. if the 4090s back then wasn't that large (tall) to esseitially force one to bend it tightly with a small footprint connector, it likely won't have as big a drama unfolding
 

setx

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Dec 10, 2014
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the old 8pin is "safe" coz it carries much lower power per pin
It's safe due to completely different reason: it's overprovisioned by at least 2x, maybe even 3x.


Personally, I think using old proven-good connectors is competitive advantage. I would definitely buy a card with 4x 8-pin connectors (or even 6x) over card with 1 new dangerous one.