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
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.
25 Comments on PC Enthusiast's Next Stop is... 12VHPWR Power Connector with Active Fan Cooling?
As it's the same whiny little fans they've been putting on pci-e 5.0 sdds.
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
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.
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.
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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
First time I used some AI to generate a picture out of text.
Note: Not a real product.
Briefly.
Before the whole PC catches fire.
And then the connector melts in the fire, too.
It isn't just the grammar that gets lost but the entire language.
Nailed the sequence too.
The top of my case is ventilated.. I should move back to my Torrent to seal in the bbq.