the_Scarlet_one

808sting
Based on Igor's discovery of the cheapo bridged connections, makes you question the different solutions.  CableMod combined the 4-way further down their cable, but still uses the connector.  Would be curious to see the internal design of their connector housing on the cable and their separate right-angle adapter.
 
Make me appreciate more for EVGA's Powerlink 4-way adapter for the 3090ti.  Over 500w draw and fixed connection onto their card.

Cable mod isn’t using the same connector. NVidia had this connector made. CableMod simply uses common sense and makes each wire terminate to a single pin, just like the rest of the world does. NVidia literally made a problem.

Thanks.  That's reassuring for their cable solution.  In a FAQ FWIW somewhere, CableMod did say their form factor connector still falls under the 30 cycle life span I'm guessing for liability purposes.  I still like their right angle adapter and cable replacement option over an AIB included adapter.  Just need a bit of luck getting a Gigabyte or MSI card.  They sell out within a minute coming in stock.  

Never mind.

I would say that nailing down the make/model will be dependent on who delivered the utilized stock each day. The specifications of the pin from PCI-Sig obviously aren’t of concern, or NVidia would never have been able to solder this garbage together.

I am surprised Nvidia has not made a public statement about this yet. You would think given the insane liability, their lawyers would be on top of this putting out a statement no matter how boiler-plate it sounds.
 
CableMod is making the 90-degree & 180-degree connectors along with the cables but their delivery is 4 - 6 weeks AFTER the orders which don't even go live for a couple of weeks! So we're talking TWO MONTHS or thereabouts.
 
Really wish EVGA would release the 16-pin to 4x 8-pin "FE" cables ASAP.
 
At this rate, I'm glad I still don't have the 4090; waiting to see what happens with this cable/adapter melting fiasco.
 
Let's hope it gets resolved before the 4090 TIE is released. :D

My cable is the 300v one, so I guess I’m good.

Nereus
 
I was looking at the right-angled CableMod adapters.. I wonder if any of them will be compatible with EVGA 3090Ti. Clearly the connectors are quite specific from model to model, even though they look very similar to the eye. Frustrating that all the manufacturers can't agree on one standard.
 
 

Sure looks like it will work with the 3090 Ti FTW3 as long as you get the B model that has the sense pins on top (even though they won't be used).

kraade
I can pull 495+w sustained on my 3090ti x3 adapter for 40 min stress test and it is still room temp, IT IS NOT 45C / not 65C, but 24 C, 
It is something to keep an eye on but nowhere near the HYPE Jay is giving it.

Your 3090ti adapter isn’t setup the same way the 3090ti adapter is. There are major difference in the whole design.

Jay also liked to jump on the bandwagon and prove how smart he is, and it usually ends up looking pretty dumb most of the time.

We have our first native 12VHPWR modular cable burn up. https://www.reddit.com/r/nvidia/comments/yltzbt/maybe_the_first_burnt_connector_with_native_atx30/
 
So much for buying a new 1300w native power supply, looks like not even modular 12VHPWR-to-12VHPWR cables are immune. 

Didn't take long, we have a second native 12VHPWR cable that began melting: https://www.reddit.com/r/nvidia/comments/ymq9x5/native_atx_30_connector_meltedburnt_msi_mpg_a1000g/
 

According to this Classical Technology Nvidia shipped over 100,000 4090 GPUs 

Ranmacanada
With all these issues it's looking more and more like EVGA did the right thing and got out.

Erm... 100k cards sold in a blink of the eye, including up to $400 AIBs price over FE. Looks to me that EVGA did the wrong thing.
 
When you manufacture a product that makes scalpers life easy, you do not stop the production.

dragomirc

Ranmacanada
With all these issues it's looking more and more like EVGA did the right thing and got out.

Erm... 100k cards sold in a blink of the eye, including up to $400 AIBs price over FE. Looks to me that EVGA did the wrong thing.
 
When you manufacture a product that makes scalpers life easy, you do not stop the production.

 Words to live by?? Solid business plan?

Sajin
My cable is still going strong.

Good to hear

frankd3
I have the 3 8-pin to 12-pin connector that I showed above for my 3090 Ti. In benchmarking I can hit 505W and the connector is barely warm.
 
I'm starting to believe that although the connector should have been beefier it looks like, so far, that the connector is not the current problem with current power draws.
 

I kind of wonder if it’s a mix of different issues. I think a lot of it has to do with people who would buy a 4090 wanting a very clean look to the case and NVIDIA making that practically impossible with the adapter. People are probably pulling on the adapter and the connector on the card.

The 300V/150V thing is probably a red herring. At best in terms of diagnosing this problem, it indicates that different manufacturers are using different materials, or allowing use of alternative parts due to procurement issues, which we could have assumed anyway. The main difference in the voltage rating of the wire is the insulation thickness given the material the wire uses for insulation. There are tons of different materials, but the thickness of any of them will determine how much voltage it will take to have arcing or dielectric breakdown. The voltage rating means dielectric breakdown happens at a voltage much higher than the rating, so you can use the wire at voltages up to that rating with confidence. The thicker the wire insulation, the more expensive (and stiffer) the wire. So it generally behooves you to not use the 300V wire for 12V applications unless you are using it in close proximity to high voltage from external sources or if you are already using it for a bunch of other products and you don't want to keep inventory of yet another type of wire.

OK, so all that said, we're using 12V. 150v wire insulation... 300V wire insulation... No problem either way in a computer application like this. The insulation temperature rating is much more important. You can have either voltage rating insulation have a temperature rating of 80°C or 105°C for example. Most companies are being forced away from the 80°C stuff as it melts like crazy when you use lead free solder (which has a higher melting temperature than the old leaded stuff). Soldering it to things like the copper bus shim shown by Igor leaves shriveled and ugly insulation near the solder joint and can sometimes expose more wire than is acceptable. That concern, in this use-case, would be a short circuit...but that's not what we're seeing either. We're also not seeing the wires themselves melt from use.

This is why I say that the wire ratings and use of 150v or 300v wire is not the issue. Even the crappy 80°C stuff is not going to cause this problem.

I really think that there are multiple problems here, but they all relate to the contacts. Igor found a real problem with the little flimsy copper shims used as "bus bars", but seeing the crimped terminals fail too now confirms what I was saying before. The contacts are a cheap and bad design with really loose tolerances. The split ones will have more chances for failure, but even the half-split ones can too. There are multiple ways they can have issues.
1. The stamped sockets can be spread out slightly, not making good contact with the pins, creating a higher impedance than needed for safely conducting the required current.
2. The tiny little tab that catches in the plastic connector housing can fail to grab adequately, due to being bent, broken, or misalignment (this one also relies on the plastic molding tolerances, which I've personally seen be bad several times with this type of connector). This leads to the socket not being fully seated in one chamber, even though the connector is fully seated.
3. The more pins there are in this type of connector, the more friction there is in the plastic, so it's harder to "feel" when the latch clicks into place and that can cause more people to not fully seat their connectors, which already happens with the 8-pin connectors. Then you add in the huge coolers with recessed areas for this connector and how tight the cable bend ends up being when people shoe-horn the card into their case and the risk of this happening goes up.

I think those three above are likely the primary culprits. What those mean is that most of the cables will be fine. Think about it in context with the 8-pin cables...those occasionally melted connectors too. They just did it MUCH less often. That's because the current used was much less than what they were rated for and the tolerance issues are less important when the contacts themselves are larger. The smaller the contact, the tighter the tolerances have to be and then you add that they're using these with graphics cards that can draw current up to what, 80-90% of what the contacts are rated for at maximum? If all conditions are perfect and the parts are made right, they'll be fine. Conditions are never perfect 100% of the time though. There's always going to be some risk and some percentage of parts not made or assembled right. They chose a connector and socket design where that risk is much higher than anybody who pays $1600-2200 should expect. It's completely unacceptable.

TLDR: the rtx4090 sucks and is just a matter of time the 12V cable gonna worn out and melt?
Nvidia still keeping their silence