Friday, February 21st 2025

PC Enthusiast's Next Stop is... 12VHPWR Power Connector with Active Fan Cooling?

Just when you thought you'd seen everything, a Taobao seller has unleashed what might be the most over-engineered power connector solution yet: a 16-pin 12VHPWR power adapter complete with its own cooling fan and real-time monitoring display. Yes, you read that right—we're now actively cooling power connectors. The $30 adapter appears as manufacturers continue struggling with melting cable problems on NVIDIA's RTX 4090 series, despite the company's claims of resolving the issue. The adapter includes an LCD screen showing real-time temperature and power consumption readings, while its 180-degree design prevents sharp cable bends that are often blamed for connection problems. However, unlike more comprehensive solutions proposed by engineering experts, it doesn't address the fundamental issue of uneven power distribution across the connector's 12 power wires.

The adapter works with RTX 4090, 4080, and 4070 graphics cards. Still, it shouldn't be used with newer RTX 50 series cards, as the sales listing doesn't mention any GeForce RTX 50 series compatibility, and the latest "Blackwell" GPU design uses an updated 12V-2x6 power connector, which still appears riddled with issues. While adding a fan to a power connector may seem excessive, an intriguing possibility is that we may soon find water-cooler power connectors for the newer 12V-2x6, so users can prevent their $2000 NVIDIA GeForce RTX 5090 GPUs from melting their power connectors. Irony aside, power delivery safety is a growing concern, and no clear resolution exists. NVIDIA has reassured users in the past that these problems are now solved, but the issues are piling up as more users get ahold of their RTX 5090 GPUs.
Sources: Taobao, via HXL, Tom's Hardware
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25 Comments on PC Enthusiast's Next Stop is... 12VHPWR Power Connector with Active Fan Cooling?

#1
Space Lynx
Astronaut
I mean, if I owned a 5090 and this was a fullproof fix, $30 is small price to pay for security of a 2k card. Tis sad to see none the less.
Posted on Reply
#2
Carillon
just need one for the PSU side now
Posted on Reply
#3
ThomasK
What a joke of a solution.

As it's the same whiny little fans they've been putting on pci-e 5.0 sdds.
Posted on Reply
#4
Raiju
I mean if the cable isn't well plugged in, i don't think this little fan is gonna cool the 600watts the cable provide.
It would make more sense to me to put the fan on the other side (upper if we're accounting for that lcd screen) and so helping cooling the cable & connector
Posted on Reply
#5
Denver
You can copy this one, Jensen. It's patent-free. :cool:

Posted on Reply
#6
Daven
The design of this connector just gets worse and worse.
Space LynxI mean, if I owned a 5090 and this was a fullproof fix, $30 is small price to pay for security of a 2k card. Tis sad to see none the less.
If I owned a 5090, my wife would have left me and I would be buried under my burned down house by now. Okay, maybe only the first part would be true.
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#7
tsunami2311
I think it time nvidia be held accountable for there bs design on these stupidly powered cards, the connector is least of issue there lack safe guards and balance is bigger issue
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#8
capdauntless
How about making cards more efficient so they require less power draw and by extension no silly power connectors?
Posted on Reply
#9
INSTG8R
Vanguard Beta Tester
An expensive “band aid “ for a connector nobody asked for and has proven “unreliable“ in the sense that it must be absolutely perfect or risk imminent damage…
Posted on Reply
#10
Chrispy_
Nvidia's 12VHPWR is a sunk cost fallacy now.
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#11
john_
I want a siren on it. When something goes bad to start screaming.
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#12
anonuser57
This thing is a total scam. The 5090 has a current balancing problem and the only way to fix it is to add circuitry to ensure that power draw is distributed evenly across the pins.
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#13
Chrispy_
anonuser57This thing is a total scam. The 5090 has a current balancing problem and the only way to fix it is to add circuitry to ensure that power draw is distributed evenly across the pins.

Yep. This CT scan is damning.

The PSU's job is to provide the current when a load draws it. The GPUs job is to draw that current from each 12V wire pair in a safe and controlled manner, because the PSU is (by design) going to be a single rail in most units.

Nvidia making their GPU end a single-rail is a super-stupid idea given the existing fiasco of melting 12VHPWR connectors. It's like intentional sabotage, because if someone hypothetically tried to come up with the exact opposite of what is needed to solve the melting connectors issue, the 5090FE's single rail would be it.
Posted on Reply
#14
Dragokar
Well the fan can either cool the cables and/or nourish the starting fire xD
Posted on Reply
#15
JustBenching
Space LynxI mean, if I owned a 5090 and this was a fullproof fix, $30 is small price to pay for security of a 2k card. Tis sad to see none the less.
I have 0 faith that this would stop a cable from melting
Posted on Reply
#16
_roman_
I wonder how often this will sell.

Bad ventilation will not help the customer when he has chosen a bad airflow with a very bad ventilated pc case.

You need a high temperature difference for the air blown to that connector to maybe see a difference. Therefore you may heavily reduce the temperature in the computer case first. You should aim to get below 40°C under load. Than they should focus on proper airflow. Than they may add additional fans which may point to these connectors.

--

I want to see a AIO 420mm for that connector. Basically 2x a AIO each with 420mm. One for the graphic card side and one for the psu side. Proper cooling. :P
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#17
bonehead123
Just an FYI, but April 1st is still over a month away :D
Posted on Reply
#18
_roman_
Something like this for 1sth April fool day?



First time I used some AI to generate a picture out of text.

Note: Not a real product.
Posted on Reply
#19
Chrispy_
JustBenchingI have 0 faith that this would stop a cable from melting
It'll stop the CONNECTOR melting.

Briefly.

Before the whole PC catches fire.

And then the connector melts in the fire, too.
Posted on Reply
#20
Space Lynx
Astronaut
_roman_Something like this for 1sth April fool day?



First time I used some AI to generate a picture out of text.

Note: Not a real product.
that looks like a custom water tube to going to the connector, lmao thats great
Posted on Reply
#21
HairyLobsters
Space LynxI mean, if I owned a 5090 and this was a fullproof fix, $30 is small price to pay for security of a 2k card. Tis sad to see none the less.
These aren't designed for the 5000 series, but the 4000 series.
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#22
DaemonForce
_roman_I wonder how often this will sell.
Yes. It will sell out in waves because normies are stupid and can't be bothered to research 5min of basic electronics.
It isn't just the grammar that gets lost but the entire language.
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#23
r.h.p
john_I want a siren on it. When something goes bad to start screaming.
:laugh:
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#24
freeagent
Chrispy_It'll stop the CONNECTOR melting.

Briefly.

Before the whole PC catches fire.

And then the connector melts in the fire, too.
This 100%

Nailed the sequence too.

The top of my case is ventilated.. I should move back to my Torrent to seal in the bbq.
Posted on Reply
#25
shhnedo
Here we go, inventing something that shouldn't exist in the first place if someone did their job right... Not to mention it costing money too...
Posted on Reply
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