NVIDIA RTX 50 SERIES - Technical/General Discussion

[Minusorange]

You can. just apply a power limit on msi afterburn

You would need to limit the power to 200w if you're concerned about the problem though, the issue isn't the high power the card pulls, the issue is "IF" 5 of your 6 power wires fail and the high power is then forced through a single wire which results in a very hot wire, there's not really any sensible mitigation apart from a redesign of the PCB or putting sensors on the wires to see how much power each wire is drawing

 

[Quartz]

You can't, well you could but it would require you putting sensors on each wire to see how much power they are drawing,

Hopefully someone will make a sensing plug that will cut the power completely.

 

[Rusty0611]

Gently rubs my new NZXT C1500 with two sockets hoping that future cards come with two sockets too

 

[Raiden85]

Using the same cable with my 4090 also and had zero issues, i wonder if the 4090 cable heats up quickly like that video above ?

My 4090 cable when pulling about 430w seems to max out at around 50c to 55c, but some of this heat will be coming from the card as that area gets very warm. Looking at the rest of the cable it stays fairly cool nearer to the middle to bottom. Even though this is a 4x 8 pin cable (I only have 3 connected) it is rated according to cablemod to pull 600w over just two cables, same as the corsair ones.

 

[Minusorange]

Hopefully someone will make a sensing plug that will cut the power completely.

I don't know how economically viable something like that would be, even when you think it's to protect a £2,000 GPU, especially if you want to cut power, some kind of alarm might be more viable or maybe software based that can automatically limit the power on GPU if a single wire crosses a certain threshold, really it should be on Nvidia to fix their design flaw

 

[Trox]

5 mins of gaming then the GPU power gets cut?

I think they need to fix the uneven power draw first

 

[Varys]

Given that so few cards have been made due to chinese new year, they should halt production until a design solution is found. Can't be that difficult.

 

[peahead]

Gently rubs my new NZXT C1500 with two sockets hoping that future cards come with two sockets too

Be careful it might overheat and melt if you rub it to hard

 

[philo-sofa]

Suspect he's right about this being the issue debauer identified and with 12VHPWR in general. I'm not an electrical guy, but he lays the reasoning out pretty clearly.

 

[SeeNoWeevil]

I don't see how it can be a different cable with different power handling but still retain the same plug i.e allowing users to plug in under-specced cables that could cause a fire.

 

[jonneymendoza]

Given that so few cards have been made due to chinese new year, they should halt production until a design solution is found. Can't be that difficult.

And what about the people who have already purchased the cards?

 

[benjii]

There is already mixed reports on this, with some analysis videos showing no issue. My money is on them ignoring the problem and fixing it with a later revision/new gen. Not everyone will have the issue. Of those that do, not everyone will RMA it. For people that RMA it, some will get unfairly rejected. Only after that, they have to deal with compensating AIB partners, maybe. We don't know what their contracts say.

The point is, if it'll cost more to recall it/fix it then it will to deal with dead hardware, then they won't fix it.

 

[Quartz]

I don't know how economically viable something like that would be, even when you think it's to protect a £2,000 GPU, especially if you want to cut power, some kind of alarm might be more viable or maybe software based that can automatically limit the power on GPU if a single wire crosses a certain threshold, really it should be on Nvidia to fix their design flaw

I suppose you look at it the reverse way and cut out on too great a draw on one line; maybe have a simple car fuse on each power line. Would 15A (=180W) suffice? But if one blows then you want the thing to stop completely, not just shift power draw to other lines.

 

[philo-sofa]

Those of us with 8-pin (PSU side) to 12V-2x6/HPWR connectors should be better off than those using power supplies which have 12V-2x6/HPWR connectors on the PSU side.

The PSU itself should regulate and cap the power output to each of the PCIe 8-pin cables, giving us a degree of the benefit the triple in-parallel shunt resistor layout had: i.e. not shovelling all the power along one cable.

 

[Cookie12]

Just catching up. So the 5090 is confirmed to come with MFG

Multi Flame Generation.

 

[Absolutely Clueless]

Those of us with 8-pin (PSU side) to 12V-2x6/HPWR connectors should be better off than those using power supplies which have 12V-2x6/HPWR connectors on the PSU side.

The PSU itself should regulate and cap the power output to each of the PCIe 8-pin cables, giving us a degree of the benefit the triple in-series shunt resistor layout had: i.e. not shovelling all the power along one cable.

Those using their PSU manufacturer's own 12VHPWR cable should also be in a reasonable position as well. (Famous last words....)

 

[Cosmic Schwung]

That really does seem like a shocking design. Wonder if it could eventually lead to lawsuits.

"While there's no strict number, a class action lawsuit typically requires a "numerosity" of plaintiffs, meaning a large enough group of people with similar claims, where individual lawsuits would be impractical - often considered to be at least 40 members in a class, though this can vary based on the specific case and jurisdiction"

So that's why they went ahead with the launch with so few units.

 

[philo-sofa]

Those using their PSU manufacturer's own 12VHPWR cable should also be in a reasonable position as well. (Famous last words....)

This surprised me but according to Actually Hardcore Overclocking's video, the 12V-2x6/HPWR connector doesn't really have a way of sensing what's being delivered to each pin of the connector. Hence both the DeBauer and likely 'melted 5090 guy' seeing one cable burdened with over half the power draw of a 5090.

 

[malccy]

 

[Poneros]

I don't understand all this whining about the power connector heating up. If you can't afford to buy a 2nd 5090 then you can't afford to buy the first 5090. This is not a card for brokies!!

Spoiler

* Might also need to afford a new house