PC Enthusiast's Next Stop is... 12VHPWR Power Connector with Active Fan Cooling?

[eidairaman1]

The linked article from 2023, demonstrated a 12V-2x6 having no problems running above max rating while at the same time not fully mated. Here it is again - https://www.techpowerup.com/314066/...-to-handle-full-load-while-partially-inserted
I'm struggling to see why that isn't being paid attention to.

It happened over time is why. Point is nv aint going to do shit about it until a regulatory function gets involved and hits them with a harsh fine

 

[user556]

What happened over time?

So even the dubious 12VHPWR is fine if all 12 pins are making contact and all cables are physically undamaged. At 100W per pair that's 8.3A per pin and the pins are rated to 9.5A. Even if the connector is not fully mated, there should at least be contact.

Should is the operative word. There is at least some 12VHPWR flawed plugs that don't. Those need recalled. If they are not identifiable then a general recall of all 12VHPWR is in order. It's that simple.

Where connectors are melting and thermal imaging of hot cables (der8auer, for example) is happening, that's because both the PSU and Load are 'dumb' designs that aren't balanced, and you can get the vicious circle I mentioned in my last past. All it takes to get a wire too hot is some invisible damage to the internal wire strands under the sheathing, or a bad crimp job on one of the Amphenol connector pins in the cable's plug. Once you have a hot wire with higher resistance, the problem is self-feeding because it's a positive feedback loop that requires shunt resistors and a monitoring to counter, not a single dumb rail with zero monitoring.

Nice bonus, but it doesn't make a working plug. The cables still need replaced to fix the problem plugs. Best way to do that is give everyone the newer 12V-2x6 upgrade.

 

[Chrispy_]

The cables still need replaced to fix the problem plugs. Best way to do that is give everyone the newer 12V-2x6 upgrade.

But the newer 12V-6X2 doesn't fix anything, and it's a connector upgrade on the GPU end, the cables are still the same as 12VHPWR.

It's literally just the exact same dumb design with ever so slightly longer pins, so it might prevent a small fraction of problems but fundamentally there's still no anti-melt protection on the GPUs without multiple shunt resistors to monitor and balance the current.

 

[user556]

That's a myth. No one seems to want to admit a recall is needed.
Moddiy are all but admitting it here - https://www.techpowerup.com/forums/...ables-for-geforce-rtx-50-series-cards.332507/
If the cable plug has a H++ marking then you should be all good.

Yes, I am speculating. But no one has proved me wrong either. I haven't yet seen a H++ marked cable get hot.

If a full 12V-2x6 (H++ on the cable plug) example of a hot running (within spec) connector can be demonstrated. I'll happily change my mind and admit the connector design is simply too weak to support 600 W.

PS: If you read between the lines in Moddiy's statements. They are saying that the spec doesn't cover female pin designs inside the plugs. It's just whatever fits the male pins. So, an upgraded spring contact can happen without a change to the spec.

Which also means it could be applied to the older plugs too. But who'd do that when you can just de-list them and offer the newer model instead.