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AMD to Ditch 12-Pin GPU Power Cable as Photos Appear of Melted RTX 4090 Adapters

By | 26/10/2022

Nvidia RTX 4090 ability connectors are melting – What you tin can do to minimize the risk

Another year and another controversy emerges over Nvidia’southward flagship graphics cards. But you can minimize your ain risk of information technology happening to yous.

Think when overheating issues started appearing with the Nvidia RTX 3090? Fast-forward to 2022 and the RTX 4090, and nosotros’re correct back in controversy town. Merely this time it’south potentially a little more serious. Reports are start to surface — such equally this Reddit thread — that the 12VHPWR connector is overheating to the indicate of melting.

And that, well that’s non practiced. Not to mention incredibly dangerous.

So what appears to be going on here? First, the background. If you aren’t familiar, the Nvidia RTX 4090 uses a new connector, specifically the 12VHPWR 12-pin. This single connector is supposed to exist rated to handle 600W, which is handy since equally we saw firsthand, the RTX 4090 can easily pull 600W. But that’s a lot of ability coming downward a fairly small connector, and right from opening the box, the adapter cable included so yous didn’t need to get a new power supply was a cause of concern. You lot assume information technology’s safe, merely in that location’s plenty of deep down in the gut feeling that it doesn’t seem right.

But what appears to exist happening isn’t necessarily sectional to these adapters. The issues seem to exist caused by bends in the cable close to the power connector. This tin can cause strain on the terminal or on the connexion where the cables are crimped into the concluding, or just the cables coming loose. This in turn leads to higher resistance or uneven loads and that leads to heat. Which then leads to melting.

There’s a whole word to be had about the design of the power connector itself and whether it’s really the all-time for the situation. Nvidia could accept gone in a different direction, like using iii 8-ping connectors just chose not to, and now might have some serious heat coming their way. The video below from Buildzoid is a good explainer.

And so what can you do? The folks at Cablemod take a now almost essential product on the fashion to help eliminate bends (and, you know, merely help you fit these things in your case) in its correct-angled adapter. But the same visitor also has a helpful guide on proper RTX 4090 cable use. And yous should definitely read it.

The 12VHPWR connector and the terminals used in it are much smaller than the previous generation. Through our extensive testing, it appears that angle the wires too close to the connector could result in some of the terminals coming loose or misaligning within the connector itself. This may lead to an uneven load across the other wires, increasing the risk of overheating damage. The risk of this is substantially college if the bend is done horizontally in relation to the connector orientation (left to correct).

This ways that whether your graphics card is mounted horizontally or vertically, you have an inherent risk. The recommendation is to ensure bends in the cables don’t occur inside 35mm of the connector. Which isn’t as like shooting fish in a barrel as it sounds, especially without any rigid housing effectually this area. And
avert horizontal bends.

If you have ane and it’s already a tight fit getting information technology into your example at all, don’t assume y’all’ll be OK. Personally, I’m withal having to leave the side of my case off just to fit the cables at all. Needless to say its as un-aptitude as it tin can possibly be now.

We’ve reached out to Nvidia for comment and will update as we hear more.

Nvidia RTX 4090 Founders Edition

The undisputed heavyweight champion of consumer graphics cards, nothing else comes close to the RTX 4090

Nvidia RTX 4090 Founders Edition

The undisputed heavyweight champion of consumer graphics cards, cipher else comes close to the RTX 4090

Source: https://www.xda-developers.com/nvidia-rtx-4090-power-connectors-melting/