Info 12VHPWR PSA on cable bending

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Leeea

Diamond Member
Apr 3, 2020
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NVidia digging deeper

That is some deep sadness there.

If you do not use nvidia's connector your warranty is void? That is insane.

This appears to indicate if you use the manufacturers plug that comes with an ATX3 power supply your voiding the warranty?
 
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sze5003

Lifer
Aug 18, 2012
14,184
626
126
That is some deep sadness there.

If you do not use nvidia's connector your warranty is void? That is insane.

This appears to indicate if you use a ATX3 power supply your voiding the warranty?
No that's not true, it was later found out that isn't the case. Cablemod reached out to Nvidia and they clarified warranty won't be void. It even says you can use a native 12vhpwr cable in the specifications doc.

 
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Stuka87

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Carfax83

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An updated article for Igor's Lab. He goes into some of the differences between manufacturers.


I said on the previous page that I thought it may be due to manufacturing standardization problems. I think if my adapter was going to fail, it would have done so already so I may have one of the good ones.
 
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JustViewing

Member
Aug 17, 2022
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Hopefully this episode will put a full stop to sky rocketing power requirements in the industry. Out of the box 300W should be the reasonable upper limit for high-end video cards. Similarly for CPUs, it should be around 125W for desktop processors. Manufactures should agree within themselves to stick to the limit. Reviewers should punish hard anyone breaking this limit (like what they did for AMD for exceeding 75W PCI power limit for one of their cards or the quiet mode not reaching advertised clocks). Higher power usage should be only left to over clockers.
 
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VirtualLarry

No Lifer
Aug 25, 2001
56,400
10,083
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Reminds me of the days of the "Lotes" versus "Foxconn" CPU sockets, when people were OCing their CPUs, one type of socket would burn, and one wouldn't.

Back in the LGA1156 days, I think.
 
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Stuka87

Diamond Member
Dec 10, 2010
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The connectors not having a positive "click" when inserting them is certainly a design issue. The 6 and 8 pin GPU power adaptors have a click that you can both feel, and hear. The 8 pin connector is also physically more robust.

The smaller a connector is, the easier it is for it to be pulled out by applying any angled stress on it. And really, there was zero reason for it to be so small. Hopefully there is a "version 2" of the connector that ends up having a more positive insertion and retaining clip.

But hats off to GN for doing the right thing. Instead of just posting a video with every new theory like some others, they did all the work, and even utilized a 3rd party failure analysis company.
 

Saylick

Diamond Member
Sep 10, 2012
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The connectors not having a positive "click" when inserting them is certainly a design issue. The 6 and 8 pin GPU power adaptors have a click that you can both feel, and hear. The 8 pin connector is also physically more robust.

The smaller a connector is, the easier it is for it to be pulled out by applying any angled stress on it. And really, there was zero reason for it to be so small. Hopefully there is a "version 2" of the connector that ends up having a more positive insertion and retaining clip.

But hats off to GN for doing the right thing. Instead of just posting a video with every new theory like some others, they did all the work, and even utilized a 3rd party failure analysis company.
Yeah, this makes sense...

Maybe someone here can enlighten me, but what's the point of this new 12-pin power connector? Is it just so that you can deliver up to 600W in a single, more compact cable than using what would be 4x8-pin power cables? If so, why the heck is it so compact? Could they not have made the outer dimensions equivalent to 1.5x the width of your standard 8-pin connector? Just seems like they tried to cram in 12-pins into the same footprint of the normal 8-pin when we're already used to power connectors taking up the space of 2x8-pins already.

 

Leeea

Diamond Member
Apr 3, 2020
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TLDW:

Two main failure modes identified (they affect both manufacturers):

1: Improper insertion (not fully seating the socket, then some sideways force to pull it out of alignment).
2: Debris in socket, Possible metallic debris from insertion cycles. Creates an alternate, higher resistance path.
From the looks of it, improper insertion is pretty easy to do. High resistance going in, no positive click, and it can look properly plugged in and not be.

Few wiggles later, some cable routing, and out comes the magic smoke.
 

Stuka87

Diamond Member
Dec 10, 2010
6,240
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Yeah, this makes sense...

Maybe someone here can enlighten me, but what's the point of this new 12-pin power connector? Is it just so that you can deliver up to 600W in a single, more compact cable than using what would be 4x8-pin power cables? If so, why the heck is it so compact? Could they not have made the outer dimensions equivalent to 1.5x the width of your standard 8-pin connector? Just seems like they tried to cram in 12-pins into the same footprint of the normal 8-pin when we're already used to power connectors taking up the space of 2x8-pins already.

Like I said back when the connector was first announced, it seems like it was made smaller just to be smaller. I don't see why the pins could not have been the same size as the existing PCIe power connectors. But chance are, we are stuck with it for the next decade or so
 

Aikouka

Lifer
Nov 27, 2001
30,383
912
126
From the looks of it, improper insertion is pretty easy to do. High resistance going in, no positive click, and it can look properly plugged in and not be.

Few wiggles later, some cable routing, and out comes the magic smoke.

It kind of reminds me of all the times that I believed that I plugged the HDMI cable in all the way to only find out that "my PC isn't working" (no picture) because I actually didn't plug it in all the way. 😋 It always has just enough resistance that I think it's good.
 

Heartbreaker

Diamond Member
Apr 3, 2006
4,237
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It kind of reminds me of all the times that I believed that I plugged the HDMI cable in all the way to only find out that "my PC isn't working" (no picture) because I actually didn't plug it in all the way. 😋 It always has just enough resistance that I think it's good.

There is a latch on the power connector though, so if you are paying attention you can make sure it's latched.
 

sze5003

Lifer
Aug 18, 2012
14,184
626
126
From the looks of it, improper insertion is pretty easy to do. High resistance going in, no positive click, and it can look properly plugged in and not be.

Few wiggles later, some cable routing, and out comes the magic smoke.
Yea lots of people on reddit said they used force, made sure it was plugged all the way in too. I bet there are variances too in the adapter cables where some are more prone to go in easier than others.
There is a latch on the power connector though, so if you are paying attention you can make sure it's latched.
Even if the latch is in place according to those who had it melt a few of them did make sure they pushed firmly to connect it properly..some said theirs did not click.

I'm using a native 12vh power cable and mine does have a click but it's not super audible. I made sure the GPU and it's cable were the last thing I put in the case and then used a crazy amount of force to push the connect into the card. The card flexed a bit but I've checked last week and no burned pins so knock on wood it stays like that.
 
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MrTeal

Diamond Member
Dec 7, 2003
3,578
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Part of it might be to wanting to miniaturize the connector, but I have to imagine part of it is wanting to reset the standard and the power levels from the old connectors. The 6 pin 75W standard only originally had two 12V pins required to populated which was a poor choice, and then they doubled it by making all 3 required to be populated but adding a ground/sense pair to differentiate the cables. GPUs just draw too much power and started require a comical number of 8 pin cables.

It's pretty appealing to have a universal single cable that can indicate what it's rated for and can scale from lower power levels up to 4090 class cards. There just obviously issues with this one.
 

Heartbreaker

Diamond Member
Apr 3, 2006
4,237
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Even if the latch is in place according to those who had it melt a few of them did make sure they pushed firmly to connect it properly..some said theirs did not click.

Those latches often don't make much audible noise, but that isn't the point. If you are seating them, you can keep a finger gently on the latch to feel when it's latched, or you can test it.

GN video shows clear evidence on the damaged user cable they received, that it wasn't remotely close to being seated, let alone latched, and they said you can see similar witness marks on other damaged connectors.

This means, most likely it was a haphazard effort at best. Not everyone installing a GPU really has much clue about what they are doing, or the importance of seating connectors.
 

Leeea

Diamond Member
Apr 3, 2020
3,645
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Those latches often don't make much audible noise, but that isn't the point. If you are seating them, you can keep a finger gently on the latch to feel when it's latched, or you can test it.

GN video shows clear evidence on the damaged user cable they received, that it wasn't remotely close to being seated, let alone latched, and they said you can see similar witness marks on other damaged connectors.

This means, most likely it was a haphazard effort at best. Not everyone installing a GPU really has much clue about what they are doing, or the importance of seating connectors.
The same GN video also shows how a person can have it look like it is plugged in, and then wiggle it out while cable routing.

Looked pretty easy to me to screw up.

Good advice about finger on the latch.
 

Carfax83

Diamond Member
Nov 1, 2010
6,841
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1: Improper insertion (not fully seating the socket, then some sideways force to pull it out of alignment).

I wonder if the explosion in the popularity of PC gaming over the past several years has anything to do with this. PC gaming used to be fairly niche back in the day, but now more and more console gamers are making the leap to PC gaming and a lot of them don't have much experience building a PC which increases the chances of making critical mistakes.

My nephew is one such gamer. He was a dedicated console gamer for years, but now he wants to build a gaming PC and he recently bought an Asus RTX 3080 ROG Strix from Newegg.
 

JustViewing

Member
Aug 17, 2022
139
239
76
TLDW:

Two main failure modes identified (they affect both manufacturers):

1: Improper insertion (not fully seating the socket, then some sideways force to pull it out of alignment).
2: Debris in socket, Possible metallic debris from insertion cycles. Creates an alternate, higher resistance path.

Now the warranty statement will be updated like "Warranty void if the cable was not connected by qualified service personal"
 
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