Alex Blake


The 12VHPWR graphics card connector has made a name for itself for all the wrong reasons, with the component frequently melting and causing the death of many a GPU. Now, graphics card manufacturers are apparently testing a replacement that could finally put an end to the sorry saga.

The new version, dubbed 12V-2×6, can reportedly deliver up to 660W of power to a graphics card — 10% more than the 12VHPWR. Despite that, testing has apparently shown it to be much safer than its predecessor.

From the outside, the design of the 12V-2×6 is fairly similar to the 12VHPWR. However, a key difference is that the new connector can deliver extra power through the GPU’s PCIe slot, which enables its higher power draw. In fact, testing by YouTube channel Hardware Busters has shown it could send up to 675W without a hitch.

During the testing, Hardware Busters noted that the connector could deliver 600W while temperatures rose to just 40 to 50 degrees Celsius — well within the safe range of operation and nowhere near hot enough to melt the connector. This was done even with a peak power draw of up to 640W.

Even more impressively, this was achieved even when the connector was not properly inserted. The component’s shorter sense pins compared to the 12VHPWR could well be the cause of this, as they detect when the connector is not inserted fully and limit power delivery to the GPU, thereby constraining how hot it can get.

In comparison, some 12VHPWR connectors were reaching temperatures of 150 degrees, causing them to melt and inflict serious damage on users’ graphics cards. The difference here appears to be immense.

Goodbye 12VHPWR

A person holds the connectors of an Nvidia 12VHPWR cable from an RTX 4090 graphics card. The ends of the connectors are burned and melted from where the cable has overheated.
Shiftyeyes67k / Reddit

The 12V-2×6 appears to be a superior part compared to the 12VHPWR, at least from this testing. The question now is how widely it will be adopted in the industry.

Nvidia has already begun implementing the 12V-2×6 connector in its RTX 4090 cards, which previously seemed to be particularly susceptible to melting when they used the 12VHPWR connector.

AMD might also decide to add the part to its cards. Past reports have suggested the company considered adding the 12VHPWR connector to its cards but dropped the plans due to the negative reception surrounding the component. Now that a more suitable replacement has been found, it’s possible AMD could decide to add it to its upcoming GPUs.

Whatever happens, it’s clear the 12VHPWR’s days are numbered. After all the fires, broken GPUs, and numerous attempts to fix the problem, few people will be sad to see the connector go.

Editors’ Recommendations

Alex Blake

In ancient times, people like Alex would have been shunned for their nerdy ways and strange opinions on cheese. Today, he…

Here’s why I’m glad Nvidia might kill its most powerful GPU

The RTX 4090 graphics card sitting on a table with a dark green background.

A reliable leaker has just revealed that Nvidia might be abandoning the idea of releasing an RTX 4090 Ti. If the project hadn’t been canceled, the RTX 4090 Ti would have ended up becoming the best GPU by a mile — or at least the most powerful. That spot is currently held by Nvidia’s own RTX 4090.

But don’t worry — if the report about the cancellation is true, it’s not such a bad thing at all. In fact, it might be for the best for pretty much everyone involved. Here’s why.

Read more

I’ve reviewed every GPU in the last 2 years — these are the only ones you should buy

A hand grabbing a graphics card.

There are a lot of options when you’re on the hunt for the best graphics card. In years past, you could look at a product name and get a general sense of where it landed in terms of performance, but times are changing. With bizarre value propositions, extra features that go beyond raw performance, and questionable naming conventions, GPUs are a lot more complex than they used to be.

I’ve reviewed every graphics card released over the last two years, covering two generations from both AMD and Nvidia, as well as Intel’s first push into the discrete graphics market. Here are the only GPUs I’d even consider buying.
What to look for

Read more

Did Nvidia just fix the RTX 4090’s melting power connectors?

Nvidia GeForce RTX 4090 GPU.

Nvidia’s 40-series graphics cards have gained an unwanted reputation for the unreliability of their 12VHPWR power connectors, with numerous accounts circulating online of connectors melting and destroying GPUs. Now, though, it seems Nvidia might have solved the problem for its RTX 4090 graphics cards.

The idea came to light after a post by prackprackprack on Reddit, with the user asking whether their new RTX 4090 featured shorter sense pins compared to older versions of the card. Shorter pins would mean the power supply couldn’t properly connect to a user’s graphics card and send it higher wattages unless the connector was correctly pushed in.

Read more

[ For more curated Computing news, check out the main news page here]

The post This new GPU connector may finally kill the melting 12VHPWR | Digital Trends first appeared on

New reasons to get excited everyday.

Get the latest tech news delivered right in your mailbox

You may also like

Notify of
Inline Feedbacks
View all comments

More in computing