Monday, March 13th 2023

Intel Readies ATX 12VHPWR Connector Revision to Address Improper-Contact Fire Hazards

Intel is preparing a revision to the design of the 12+4 pin ATX 12VHPWR power connector, specifically its male connector, to improve connector mating and retention; and to minimize a potential fire hazard asiring from improper retention or mating. The male connector design revision will retain full compatibility with female connectors of devices in circulation. It essentially sees the pins of the male connector switch from a "three dimple" joint to a "push-spring" type joint. This design change makes the male connector much more resilient to weakening contact from pull forces arising from cable bending. The resulting connector would offer superior structural integrity of the connection.
Source: harukaze5719 (Twitter)
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52 Comments on Intel Readies ATX 12VHPWR Connector Revision to Address Improper-Contact Fire Hazards

#26
mechtech
enb141Damn, I just got my Seasonic Vertex PSU, which right now is obsolete already :mad:
Early beta adopter risk........................everyone knows it.....................
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#27
enb141
mechtechEarly beta adopter risk........................everyone knows it.....................
Well beta was supposed to be last year, this PSU is from this year.
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#28
mechtech
enb141Well beta was supposed to be last year, this PSU is from this year.
ya, unfortunately PSU's makers implement new specs and standards slower than monitor makers do.............................so beta testing psu is about 3 years after a new spec implemented
Posted on Reply
#29
enb141
mechtechya, unfortunately PSU's makers implement new specs and standards slower than monitor makers do.............................so beta testing psu is about 3 years after a new spec implemented
I was hopping 6 months for PSU but apparently is more closer to your guessing time.
Posted on Reply
#30
maxfly
enb141I was hopping 6 months for PSU but apparently is more closer to your guessing time.
A new revision isn't going to render your Vertex obsolete, not by any stretch. Your integrated 12vhpwr connector will continue to work as it should. You have nothing to worry about.
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#31
enb141
maxflyA new revision isn't going to render your Vertex obsolete, not by any stretch. Your integrated 12vhpwr connector will continue to work as it should. You have nothing to worry about.
Well, depends, if for example, Nvidia decides to use something else when they release their 5XXX series cards, then it will be obsolete.
Posted on Reply
#32
maxfly
enb141Well, depends, if for example, Nvidia decides to use something else when they release their 5XXX series cards, then it will be obsolete.
That's a non-issue. A revision isn't a rebuild.. They aren't going to rebuild the entire unit to fix a single flaw.
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#34
Chrispy_
I like how Intel is trying to fix a fire hazard by creating a revision that will no doubt be very hard for end users to distinguish from the original fire-hazard version.

Do you know what also isn't a fire hazard?
The original 8-pin Mini-fit Jr connectors that we've been using without any problems for the last 19 years.
Posted on Reply
#35
enb141
maxflyThat's a non-issue. A revision isn't a rebuild.. They aren't going to rebuild the entire unit to fix a single flaw.
Then why they decided to create a new connector?

My guess is that this connector will be like the AGP, a short lived, replaced by PCIe.
Posted on Reply
#36
Chrispy_
enb141My guess is that this connector will be like the AGP, a short lived, replaced by PCIe.
If anything is going to replace the 12+4 pin HPWR connector, it'll probably be multiple 8-pin EPS (ATX12V) connector used by motherboards for CPUs. The connector and wires are rated for 336W (7A per wire pair) so a couple of those will do any current GPU without difficulty, using just one will power a 400W GPU when you add the 75W from the slot. The only reason the 8-pin connector for PCIe is limited to 150W is because it's an evolution of the 6-pin connector in which only two pairs carried power because a pair is wasted for sense pinouts.

All of the server GPUs use EPS already; The sense pinout isn't necessary for extremely hungry datacentre GPUs.

This dumbshit HPWR connector with it's tiny fragile pins and create a need for adapters with just about any PSU was an Nvidia douchebag move that has been wholly unwelcome in what had previously been a robust, problem-free, compatible ecosystem of Minifit Jr PSU connectors. Nobody likes the ugly adapters, and the whole thing was a dumb concept to save a tiny amount of PCB space in Nvidia's FE cards.
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#37
enb141
Chrispy_If anything is going to replace the 12+4 pin HPWR connector, it'll probably be multiple 8-pin EPS (ATX12V) connector used by motherboards for CPUs. The connector and wires are rated for 336W (7A per wire pair) so a couple of those will do any current GPU without difficulty, using just one will power a 400W GPU when you add the 75W from the slot. The only reason the 8-pin connector for PCIe is limited to 150W is because it's an evolution of the 6-pin connector in which only two pairs carried power because a pair is wasted for sense pinouts.

All of the server GPUs use EPS already; The sense pinout isn't necessary for extremely hungry datacentre GPUs.

This dumbshit HPWR connector with it's tiny fragile pins and create a need for adapters with just about any PSU was an Nvidia douchebag move that has been wholly unwelcome in what had previously been a robust, problem-free, compatible ecosystem of Minifit Jr PSU connectors. Nobody likes the ugly adapters, and the whole thing was a dumb concept to save a tiny amount of PCB space in Nvidia's FE cards.
That had to be the correct way to replace the 8 PIN cable but they somehow decided to think "different" so hopefully they will move to EPS but I doubt, anyways, in the not so distant future video cards will need 2 or even 3 12VHPWR connectors anyways.
Posted on Reply
#38
maxfly
enb141Then why they decided to create a new connector?

My guess is that this connector will be like the AGP, a short lived, replaced by PCIe.
Again, this being a revision...NOT a new connector. They are simply going to modify some of the pins to allow for better contact.

If your honestly concerned with this revision affecting your PSU, I encourage you to read one of the readily available articles.
Posted on Reply
#39
trsttte
Chrispy_This dumbshit HPWR connector with it's tiny fragile pins and create a need for adapters with just about any PSU was an Nvidia douchebag move that has been wholly unwelcome in what had previously been a robust, problem-free, compatible ecosystem of Minifit Jr PSU connectors. Nobody likes the ugly adapters, and the whole thing was a dumb concept to save a tiny amount of PCB space in Nvidia's FE cards.
I get that back when pcie power connectors first became a thing they didn't know how power specs would evolve and all that, but even on the consumer space the sense pins make little sense - especially when they are just passive jumpers to 12v or gnd on the connectors, no active signalling is involved with either the old or new 12vhpwr specs.

Pretty much everyone has been using 8x pin connectors on the psu side to carry up to 300w for years, refusing to do so on the gpu side is just silly.
Posted on Reply
#40
Chrispy_
trstttePretty much everyone has been using 8x pin connectors on the psu side to carry up to 300w for years, refusing to do so on the gpu side is just silly.
Silly indeed. Both Nvidia and AMD have had >300W graphics cards since March 2011.

Why on earth did it take Nvidia 11 years to do something about it when it wasn't an issue beforehand, and why was the inferior HPWR their solution? It's more fragile, the pins can handle less current and apparently it doesn't like being bent but Nvidia put it on the outside edge RIGHT UP AGAINST THE SIDE PANEL of their largest GPUs ever realeased to market...

Talk about shooting yourself in the foot, I guess there's a lot of hope and prayers behind "it just works" these days...
Posted on Reply
#41
enb141
maxflyAgain, this being a revision...NOT a new connector. They are simply going to modify some of the pins to allow for better contact.

If your honestly concerned with this revision affecting your PSU, I encourage you to read one of the readily available articles.
No, I mean that if this connector becomes a fiasco, then they (intel / nvidia) will come with something different, the same that happened to the defunct AGP.
Posted on Reply
#42
TheoneandonlyMrK
enb141No, I mean that if this connector becomes a fiasco, then they (intel / nvidia) will come with something different, the same that happened to the defunct AGP.
Intel recently (after this pr but not today)released a press release stating the dimple crimped version should not be used and also evolved the latching mechanism to engage better.

Why.

Because generation one(or possibly ++++)of the design was shit.

So different has arrived already That's how great those adapter's are.

I expect several house fires in a couple of years once the second hand market sees mostly 4### series because degrading connections Degrade, well made ones don't.
Posted on Reply
#43
enb141
TheoneandonlyMrKIntel recently (after this pr but not today)released a press release stating the dimple crimped version should not be used and also evolved the latching mechanism to engage better.

Why.

Because generation one(or possibly ++++)of the design was shit.

So different has arrived already That's how great those adapter's are.

I expect several house fires in a couple of years once the second hand market sees mostly 4### series because degrading connections Degrade, well made ones don't.
In a few years we'll know if this connector becomes a fiasco (very likely) or just get improved (I doubt).
Posted on Reply
#44
arni-gx
so, MSI a1000w, corsair rmx shift 1000w, also all PSU with full atx 3.0 + pcie 5.0 that has been released, early this year, alll became obselete .... ?? just because all of them has only 3 dimple, not 4 spring connector of 12pin... ??
Posted on Reply
#45
TristanX76


3000W max. Problem solved. :D

Oh, its a mass production part too. Cheap.
Posted on Reply
#46
RegaeRevaeb
TristanX76

3000W max. Problem solved. :D

Oh, its a mass production part too. Cheap.
Goes well with four-slot designs as well from the looks of it.
Posted on Reply
#47
LabRat 891
TristanX76

3000W max. Problem solved. :D

Oh, its a mass production part too. Cheap.
It's a travesty that 'code' doesn't expect all outlets be 'split-phase' in the US/Can.

All NA homes are served by 120v/120v 'split-phase', and it's arguably 'safer' than WW 208-250VAC -Only the most un-lucky and clutzy could ever receive more than 169.71V of potential at any given moment.

Also, all 125V-NEMA outlets can be 'split', such that 1 'side of the phase' goes to one outlet, and 'the other side of the phase' goes to the other.
It used to be somewhat common for Kitchens to have outlets wired like this, to separate Appliance loads. It's uncommon now, as Neutral-sharing can be dangerous in some failure-modes, and nobody's (usually) willing to spend $ on another run of White Insulated Copper for an additional dedicated Neutral.

15A @ ~240VAC60hz is 3600W, and 2880W+ continuous. A dual NEMA5-15P <-> to IEC cable would be all that'd be necessary to get 2.8-3.6KW safely.



In my case, I retrofitted the wall-heater circuit into a locking 250V NEMA receptacle, and connected that to an APC PDU for 240VAC to my 'office' equipment.
Posted on Reply
#48
trsttte
LabRat 891it's arguably 'safer' than WW 208-250VAC -Only the most un-lucky and clutzy could ever receive more than 169.71V of potential at any given moment.
Safer in what way? IMO NA electrical systems are simply a mess, the voltage being halved doesn't make it safer in any meaningfull way while making it more dangerous by using double the current for anything and also wasting more power doing so.
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#49
LabRat 891
trsttteSafer in what way? IMO NA electrical systems are simply a mess, the voltage being halved doesn't make it safer in any meaningfull way while making it more dangerous by using double the current for anything and also wasting more power doing so.
A. You're proving just how arguable (which I mentioned) it is.
B. 50hz240VAC peak to peak is over 300V-on a single Hot. US's implementation is <170vac on each of the 2 Hots.

There are people with dry skin that can literally 'hang onto' NA mains and feel at most a tingle. (Don't do this, ever. Please.
It's an extreme example.
Most of those that can safely do such madness, have diagnosed dermatological problems)
Posted on Reply
#50
trsttte
LabRat 891A. You're proving just how arguable (which I mentioned) it is.
B. 50hz240VAC peak to peak is over 300V-on a single Hot. US's implementation is <170vac on each of the 2 Hots.

There are people with dry skin that can literally 'hang onto' NA mains and feel at most a tingle. (Don't do this, ever. Please.
It's an extreme example.
Most of those that can safely do such madness, have diagnosed dermatological problems)
Exactly, the threshold of skin isolation is usually considered as 50V, so 120 or 230 is irrelevant. Protection equipment cost for either voltage is not meaningfully different either.

I don't think it's arguable, it's simply not true, you get no meaningfull safety benefit, you'll die either from 120V, 230V or from a serious dermatological problem :D
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