It's happening again, melting 12v high pwr connectors

[Zach_01]

I guess if any of this dense 12pin cables want to sustain 600W for daily usage they should be build with 900W (+50% safety) max power ability and not 660W (+10% safety).

 

[mkppo]

An electrical engineer gives their opinion on this fiasco:
https://www.reddit.com/r/pcmasterrace/comments/1io4a67

This is a good read, thanks.

What I suspected is indeed true, that nvidia went backwards when going from 3090 > 4090 and then again for 5090.

Pathetic.

 

[Zach_01]

I guess if any of this dense 12pin cables want to sustain 600W for daily usage they should be build with 900W (+50% safety) max power ability and not 660W (+10% safety).

In addition...

Who cares if such a cable will cost $50 or $100
There is a local old saying here that goes: "Silk underwear require silk asses too"



EDIT: typo

 

[freeagent]

In addition...

Who cares if such a cable will cost $50 or $100
There is local old saying here that goes: "Silk underwear require silk asses too"

But wait..

Have you tried silk boxers?

They were a thing in the 90s lol..

 

[Degreco]

Nvidia: "Have fun with our product, which we totally did not rush out. Also, enjoy the new 12V-2x6 standard along with your new PSUs - we cunningly had a plan for this to go hand in hand with our new GPUS, so you never have to worry about 12v power cables and weak pin connections again."

Nvidia Loyalists: "Shut up and take my money"

 

[Dredi]

Have any Seasonic PSU's gone up?

Those cables on Romans sample look cheap AF.

Yes. There was one posted to this thread.

 

[Gigaherz]

If you were addressing this comment towards me --

But, you know, go ahead and keep up the personal attacks, I guess.
Just going to exit the discussion here, too much toxicity in this thread.

Definitely did not mean you. Not even a single person at all. But if you immediately feel offended, some offline time might actually be the best for you.

 

[Bomby569]

An electrical engineer gives their opinion on this fiasco:
https://www.reddit.com/r/pcmasterrace/comments/1io4a67

remember guys it's been over a year since a influencer made a video with a stupid face in the thumbnail and labelled it as user error, and nothing changed since then.
Maybe we got to rethink this all influencer crap.
Nvidia is to blame but so is Gamers Nexus.

 

[chrcoluk]

Another one, using the official adapter, and in this case the 8-Pin PSU connector has melted.

https://www.reddit.com/r/nvidia/comments/1io4s4y

Is no picture, https://www.reddit.com/gallery/1io4s4y redirects to the thread.

 

[TheDeeGee]

Is no picture, https://www.reddit.com/gallery/1io4s4y redirects to the thread.

Yeah, makes sense now why it happend.

He's using the entire world supply of extension cables.

 

[Dredi]

He's using the entire world supply of extension cables.

And that would be a tota non-issue if the card did any kind of load balancing.

 

[chrcoluk]

Are you guys able to see an image on that link then? if so please attach it, as I cant see it, it just takes me to the reddit thread.

 

[JustBenching]

I have an original (not the safer revision) 12vh cable from cablemod. Plugged and unplugged thousands of times. Still no housefire.

 

[Vayra86]

Well, we do now know why was this a problem for DerBauer, if the cable he used was faulty or marginal from the begining or not, and how used and abused it was.

There are always problems with new things and there are probably a lot of marginal cables around, that work only because the power draw of the cards with which they are used is not extreme. 5090 will reveal these weak cables once it is more available.

Perhaps all 5090 should ship with a clamp meter?

Sure, the highest wattage cards will reveal the weaker cables faster and more effectively, but this relates in about zero ways to the fact cables should or could be plugged or used just once.

Please... Stop pulling shit out of context to make a point that doesn't make sense to begin with... You're trying to paint the picture there is no problem, but its crystal clear this is a problem.

 

[Assimilator]

thousands of times

Uh huh.

 

[N/A]

I have an original (not the safer revision) 12vh cable from cablemod. Plugged and unplugged thousands of times. Still no housefire.

Depends on what are the receptacles like, 2 split or single split, dotted or plane contact area. if there's just two bumps how is that expected to carry 8A taking gold or tin plated into consideration. It's not just a matter of repetition, but also wiggling inplace and that opens the receptacles forever and those may not be that elastic, and also if there is a force pulling or twisting one of the cables that also rotates the receptacle inside the connector ever so slightly. I've seen people unplug their phones by wiggling roughly. I'm not saying the super experienced user did that, we just don't know.

 

[Vayra86]

An electrical engineer gives their opinion on this fiasco:
https://www.reddit.com/r/pcmasterrace/comments/1io4a67

"The connector itself isn't bad. It is simply rated far too high, leaving little safety factor and thus, little room for error or imperfection. 600W should be treated as the absolute maximum power, with about 375W as a decent rated power limit."

In other news, water is wet...
Even a child could see this just by looking at it. Again... my mind is blown at the collective blindness and tunnel vision and the fact this could endure throughout the entire existence of the 4090. Every buyer of a 4090 should be looking in the mirror now, long and hard, at their negligence of not making an issue out of this, and instead funding it and even defending it.

Yes you can 'fix' this with shunt resistors and you'll still try to pull 600W over a cable that should be doing about half of it, for reasonable tolerances and safety. Cable is fine but too much power is just another explanation of cable is not fine for its rated power.

At the same time, I completely understand why Nvidia keeps cutting corners like this. They're allowed to. The more you buy, the more they save. So again, 4090/5090 customer base... demand better, or feel the consequence yourself.

 

[LittleBro]

This is a good read, thanks.

What I suspected is indeed true, that nvidia went backwards when going from 3090 > 4090 and then again for 5090.

Pathetic.

Cost savings. Maximizing profits. This is what happens now everywhere, especially in corporates. Example: cars are not as good as they used to be, still they cost much more and are less reliable. As a manufacturer, you not only want to keep raising prices, but also want to save on inputs. Customer is screwed twice. Don't forget to blame the economic and inflation for increasing final product prices. Ultimate greed. I've seen it in my previous work (hygiene products production plant) and I see it in my current work (construction materials production plant).

I have an original (not the safer revision) 12vh cable from cablemod. Plugged and unplugged thousands of times. Still no housefire.

@BoggledBeagle, tell him to stop abusing that cable already!

Spoiler

Ah, f*uck me! So you place a new post and they remove it. Nice damage control through censorship! Trust me, that post is never gonna be restored ...

https://www.reddit.com/r/pcmasterrace/comments/1i3l6xp

 

[wolf]

So this is a bad product.

I think from everything I've read, and every way that companies tend to implement it, it's not a foolproof product for 450w+. And fools, and foolish product implementations there are a plenty.

Maybe when a card draws 575w, if it's not going to distribute load across wires properly, it should just use two of them? Asus seem to understand this where the 5090 FE manages to exaserbate it.

I can see why 4x8 pin is excessive and ugly, 2x12vhwpr would be comparatively sleek.

User error, different cards, multitude off different cables, adapters etc accounted for, it seems like there's a reason this isn't seeming to happen with <400w cards and is happening 'relatively' often with >450w cards. It's a great replacement for 2x 8 pin, less so for 3x, and on the limit for 4x. Yet, having said that, for every melted card/cable/psu are many owners willing to step forward with zero issues.

Lots of armchair engineers, lots of moral high horses, just as many if not more personal attacks too, for something really not to crazy. Use fit for purpose parts and have an issue? Use your warranty. Yet to see a house burn down.

 

[BoggledBeagle]

I can see why 4x8 pin is excessive and ugly, 2x12vhwpr would be comparatively sleek.

User error, different cards, multitude off different cables, adapters etc accounted for, it seems like there's a reason this isn't seeming to happen with <400w cards and is happening 'relatively' often with >450w cards.

You call low single digit % or less failure rate "relatively often"?

In my opinion, 95% of all melting issues have been caused by stiff adaptors or cables squished in limited space - mostly by side panels, in some cases by people trying to build unreasonably small computers, exerting force on the plug and deforming metal contacts inside.

The biggest problem may not be the socket itself, but its placement. Had all these sockets been placed on the opposite side of the video outputs facing downwards, 80% meltings would have never happened.

 

[wolf]

You call single digit % or less failure rate "relatively often"?

I mean relative to 6, 8 or 6+2 pin. Those also melt, I've seen multiple, but 450++W GPU's using the new connector, either melt relatively more than those or the publicity is way higher or both.

 

[Frizz]

Borrowed a thermal gun from a friend, this is while pulling 575w in monster hunter wilds, am I safe for now >>..

Third party amazon white cable and 12v6 to psu

 

[Panther_Seraphin]

The biggest problem may not be the socket itself, but its placement. Had all these sockets been placed on the opposite side of the video outputs facing downwards, 80% meltings would have never happened.

As Long as you didnt rear end the Ford Pinto it was a perfectly safe car as well.

The fact is that the cable was designed with little safety factor inherentlyin the design and now nGreedia is doubling down by removing safety features making it possible for the 5090FE to attempt to draw 600+ watts through a single pair of condutors on the 12VHPWR in the worst case scenario.

So that they could increase the airflow possibilities on the 40xx series with their flow through design and slim down the 5090 boards???

 

[LittleBro]

You call single digit % or less failure rate "relatively often"?

In my opinion, 95% of all melting issues have been caused by stiff adaptors or cables squished in limited space - mostly by side panels, in some cases by people trying to build unreasonably small computers, exerting force on the plug and deforming metal contacts inside.

The biggest problem may not be the socket itself, but its placement. Had all these sockets been placed on the opposite side of the video outputs facing downwards, 80% meltings would have never happened.

Single digit % failure rate is single digit amount of faulty units per 100 products made. Even 1 out of 100 is bad for $1999 GPU enthusiast-class product. For shitty $30 aku screw driver bought in LIDL (ALBI) it's actually fine.

As for limited space. We've been using old school ATX connectors in various spaces, including really constraining ones. I (not just once) had them touching side panel of the case. Old connectors have proper locking mechanism, which means in constrained space you'll be at first actually bending just wires instead of "deseating" connector. (Of course, I'm not talking about extremes done on purpose.) Nvidia promotes it's SFF certification with RTX 5000 cards, one would think they actually thought about delivering power to GPUs in SFF cases, thus they moved the socket elsewhere.

Anyway, socket placement changed with RTX 5090 and melting issue persists.

 

[Bomby569]

the apology train never stops

it's completely absurd to make excuses for this, the product should be recalled, it can cause a fire and a real tragedy for someone