News Nvidia's RTX 5090 power cables may be doomed to burn

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Why are people constantly referring to Molex for answers when they clearly had the same issue with fires on hard drives hence the molex connector on hard drives was phased out? What gives? Their credibility died all the way back then. And again, they blamed it on everyone but themselves!
 
Why are people constantly referring to Molex for answers when they clearly had the same issue with fires on hard drives hence the molex connector on hard drives was phased out? What gives? Their credibility died all the way back then. And again, they blamed it on everyone but themselves!
Because they still produce and specify most of the connector specs, so you can reference to them as the standard.

And then when your new standard can't even remotely compare to those once F-uped Molex... You got a literally "smoking fast" card
 
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Why are people constantly referring to Molex for answers when they clearly had the same issue with fires on hard drives hence the molex connector on hard drives was phased out?
There were heaps of things wrong with the old four-pin connector. Not least of which being that nothing positively maintained pin alignment, often making it difficult if not seemingly impossible to plug stuff in. I have had a few incidents where the barrel wall wedged itself into split pins due to how loose tolerances are on these things.

Those were horrible connectors in every possible way other than providing basic mechanical and electrical idiot resistance.
 
That's what happens when you fail to properly plug in the power cable.

1. Except they were plugged in correctly
2. NO, a fire shouldn't happen if they are not seated correctly per UL Listed and/or UL Certified (nVidia don't own certification)
3. 23+ amps thru 18AWG copper wire is beyond it's specification and well beyond vinyl cord insulation capabilities
4. It's a flawed design that is not UL certified that wasn't corrected because it would cut into 75% profit margins

Per Roman Hartung (Mechatronics Engineer)
View: https://youtu.be/Ndmoi1s0ZaY?feature=shared


View: https://youtu.be/oB75fEt7tH0?feature=shared


Your logo does you no favors in terms of bias reporting.
 
Those were horrible connectors in every possible way other than providing basic mechanical and electrical idiot resistance.
Absolutely 100% right ... an a $1 Trillion company called nVidia did absolutely NOTHING about it and try to absolve themselves of any wrong doing under "ignorance is bliss" approach to engineering.
 
Or just get those industrial grade 8pin which are used in seasonic
I have a Seasonic 1600W and it's been extremely reliable, but I still do verify that the pins don't push beyond their locking arms whenever I plug any connector into anything GPU, Motherboard, etc. Some of the connector quality used by other brand power supplies is shockingly bad.

What they should be using are mil spec connectors where the pins can't be removed, they're one shot deal once fed into the connector housing (there is no removing them from the housing). They should also be using mil spec wiring with nylon insulation ... you can run much higher current (AMPs) thru same AWG size. Given the cost of the GPU, adding mil spec to connector would add about $10-15 to the price ... $2015 GPU that will not catch fire or $2000 GPU that might catch fire?

I'm getting sick of nVidia raking Trillions and then cutting corners to squeeze out that tiny bit more profit margin ... it ridiculous, does Jensen need a bigger Island to buy?
 
Why are people constantly referring to Molex for answers when they clearly had the same issue with fires on hard drives hence the molex connector on hard drives was phased out? What gives? Their credibility died all the way back then. And again, they blamed it on everyone but themselves!
i dont recall any hdd fires due to the power connector ( 4 pin molex )
that power connector was phased out, do to the sata spec, which uses a differwent power plug.
 
Absolutely 100% right ... an a $1 Trillion company called nVidia did absolutely NOTHING about it and try to absolve themselves of any wrong doing under "ignorance is bliss" approach to engineering.
My "absolutely horrible" comment was about the old 4-pin connector. HPWR is a godsend by comparison.

This IS going to cost nVidia A LOT and they can't hide behind "it's someone else's specification not ours" ... not gonna work in court.
Manufacturers have demonstrated multiple times that their cables are able to deliver over 1000W without issues. Good luck proving melted connectors aren't caused primarily by mishandling damage and normal wear.

Nvidia's decision to ditch current balance monitoring is likely backed by millions of combined internal testing hours showing that it wasn't necessary.

What they should be using are mil spec connectors where the pins can't be removed
The consumer space doesn't want to pay for that and you also need to keep in mind that when the PCI-SIG adopted the HPWR connector, it was intended to eventually replace 6/8-pin cables. That would affect $150 GPUs and $40 PSUs too, not only the high-end.
 
Already in progress, their legal team may not be aware yet as evidence gathering continues. This IS going to cost nVidia A LOT and they can't hide behind "it's someone else's specification not ours" ... not gonna work in court.
Is there a new lawsuit? There was a class action started in 2022 over the RTX 4090/12VHPWR melting, but the plaintiff dropped it in 2023.

Case # 5:22-cv-07090
https://www.classaction.org/media/plaintiff-v-nvidia-corporation-notice-voluntary-dismissal.pdf
 
1. Except they were plugged in correctly
2. NO, a fire shouldn't happen if they are not seated correctly per UL Listed and/or UL Certified (nVidia don't own certification)
3. 23+ amps thru 18AWG copper wire is beyond it's specification and well beyond vinyl cord insulation capabilities
4. It's a flawed design that is not UL certified that wasn't corrected because it would cut into 75% profit margins
The spec states the connectors should be UL94V0, so I have no idea what you're talking about saying it's not UL certified. I have not seen a single case of a 12VHPWR cable actually causing a fire, it's just sensationalist reporting treating 'melting' and 'bursting into flame' interchangeably.

The spec also mandates 16 AWG wires, not 18. From your link, 16 AWG copper is good for 24A with a 90C temp rating. I don't know if there's a universal standard for PSU DC cable insulation, but mine are rated for 125C. So based on your own link, 23A over a single 16 AWG copper wire would still be within spec.
 
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The consumer space doesn't want to pay for that
And you know this how? The consumer is spending $2000-$6000 on these GPUs ... you seriously believe mil spec is going to make a difference in what they want to pay?
Is there a new lawsuit?
In the works, not filed.
The spec states the connectors should be UL94V0, so I have no idea what you're talking about saying it's not UL certified.
bSCWwNL.jpg

Fail!

16 AWG copper is good for 24A with a 90C temp rating.
xc35uA9.jpg


9.5A not 23+ ... again fail!
 
Nvidia's decision to ditch current balance monitoring is likely backed by millions of combined internal testing hours showing that it wasn't necessary.
"likely" ... or none at all ... they had similar problem in other high AMP GPUs not just the 5090 ... the incidents are stacking up and it's NOT looking good for nVidia. Sweeping this under the rug as "user error" isn't going to work this time around ... nor blaming it on PCI-SIG.
 
And you know this how? The consumer is spending $2000-$6000 on these GPUs ... you seriously believe mil spec is going to make a difference in what they want to pay?
PC connector specs have to consider the whole PC market starting from entry-level, not only $2000 GPUs.

While the HPWR connector may have gained fame in the high-end market, the connector was intended to provide everything from 75W to 300W too. Two of the "sense" pins are dedicated to identifying the cable as 150W, 300W, 450W or 600W.

A $15 power connector for cables on a $40 PSU or sub-300W GPU would hurt quite a bit.

"likely" ... or none at all ... they had similar problem in other high AMP GPUs not just the 5090 ... the incidents are stacking up and it's NOT looking good for nVidia. Sweeping this under the rug as "user error" isn't going to work this time around ... nor blaming it on PCI-SIG.
When Nvidia is doing its silicon qualification runs, it has hundreds of pre-production cards running in test centers. If melting connectors were a major issues, they would have seen it there first.

There is no "sweeping under the rug" needed here. Melting appears to be mostly an issue for people reusing cables that have been subjected to wear and abuse for years. That is why GN and others have to go to extreme lengths like cutting at least four of the 12V wires to "reproduce" the melting problem.

The only major mistake IMO is not using the "sense" pins for measuring voltage drop from the 12V plane in the PSU to the 12V plane on the GPU, likewise for ground, so the load can throttle itself to keep 12V sag / GND swell under something like 200mV, which would be 10W of losses at 50A with 4 mOhm of end-to-end resistance.

With remote-sense, no shunts required: if half the pins/wires fail or the cable is made from #18 copper-clad aluminum, resistance doubles and maximum current gets halved. If cables or pins get hot, their resistance increases and that also reduces the current limit, a great disincentive against people cable-managing stuff in hot and cramped places.

Low-power PSUs can also manipulate 12V-sense to add virtual resistance, such as by tapping Vsense from the OCP shunt's high-side. That diminishes headroom seen by the GPU by some proportion of total system load and adds the PSU's internal wiring to what counts against the 200mV budget.
 
When Nvidia is doing its silicon qualification runs, it has hundreds of pre-production cards running in test centers. If melting connectors were a major issues, they would have seen it there first.
Without knowing the specifics of their testing hardware and if they test using "controlled" conditions that ARE NOT representative of end user conditions? There is an interesting article on VideoCardZ from Intel engineer's perspective is nVidia are being irresponsible and not doing the bare minimum to ensure safety of 4090/5090 and now 5080 GPUs having same issue.

There is no "sweeping under the rug" needed here. Melting appears to be mostly an issue for people reusing cables that have been subjected to wear and abuse for years.
In some cases yes, in many cases no, first run, all stock cables provided by manufacturer. Doesn't matter how you slice it, running a cable at it's threshold of tolerance on "consumer" devices is irresponsible at best and criminal negligence at worse given it was a known issue going back to 4090. When it comes to public safety, I can guarantee you a judge is going to rule in favor of consumers.
 
When it comes to public safety, I can guarantee you a judge is going to rule in favor of consumers.
I have yet to hear about a single story of a HPWR cable starting an actual fire.

The wires and connectors are charring from pyrolysis, not fire. Materials are failing in a stinky but controlled manner, no real safety risk there unless you fill your PC with lint and tinder to maximize your chances.
 
Which of those points is 12VHPWR/12V2x6 failing? And what are you looking at for evidence?
Their use of molex connectors are incorrect and need definately a better connector.

Which they are, but they are going to be expensive.

The problem is the molex male pin is 12A and the female pin is 10A. What compounds this problem is the amount of pins de-rate the current capacity.

A connector with 6 pins is 9 amps per pin max, but for continuous duty is 80% of this. So the max continuous current is 7.2A per pin.

Btw this has been known about this connector for years. The only people that have issues with this is companies who decided to move to China and got rid of their American Engineers. So I laugh about this and I call this karma.

May all the traitor corporations suffer financially from their failed products.
 
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I have yet to hear about a single story of a HPWR cable starting an actual fire.

The wires and connectors are charring from pyrolysis, not fire. Materials are failing in a stinky but controlled manner, no real safety risk there unless you fill your PC with lint and tinder to maximize your chances.
You talk about safety in an impudent and cynical way. Please show us all your crazy ideas by your own example. We will be happy to watch this performance.
 
You talk about safety in an impudent and cynical way. Please show us all your crazy ideas by your own example. We will be happy to watch this performance.
People are trying to write about this as if it was a super-urgent fire problem. It isn't. None of them have actually caught fire.

They can rightfully be pissed about heat damage but not fire.
 
People are trying to write about this as if it was a super-urgent fire problem. It isn't. None of them have actually caught fire.

They can rightfully be pissed about heat damage but not fire.
Yes, and the damage should not extend past the computer. It would be nice if customers could somehow be sure that the power in their setup is evenly distributed in the cable wires. It hasn't been established if it changes with every connect/disconnect or if it is something inherent in the GPU, PSU or cable. If I had the card, I'd be worried that one of my wires was headed for a meltdown. What could I do right now to make sure that is not the case? I don't think touching it is enough.
 
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