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)
52 Comments on Intel Readies ATX 12VHPWR Connector Revision to Address Improper-Contact Fire Hazards
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.
My guess is that this connector will be like the AGP, a short lived, replaced by PCIe.
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.
If your honestly concerned with this revision affecting your PSU, I encourage you to read one of the readily available articles.
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.
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...
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.
3000W max. Problem solved. :D
Oh, its a mass production part too. Cheap.
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.
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)
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