Nvidia RTX 4090 melting power cable update: PSU expert offers potential fix

Reports about melting connectors and adapters on the Nvidia GeForce RTX 4090 are still popping up every so oft, and we nevertheless haven’t had an official argument from Nvidia on the matter. However, tech experts from around the globe are trying to detect the cause of the problem.

This fourth dimension around, a power supply expert from Corsair released a lengthy explanation of what might exist happening. Co-ordinate to JonnyGuru, the issue is not caused by a faulty connector but rather by user error. The fix is rather elementary.


The theory that those RTX 4090s are melting — or rather, the 16-pin adapter is — due to user fault is non exactly new. Many take already weighed in on the matter, stating that angle the cable can cause improper mating; this can potentially cause the temperatures to skyrocket, and after prolonged use, things may gear up on burn down and melt. The problem is that in many cases, bending the cable is nearly necessary, or at the very to the lowest degree, it’south difficult to avoid.

JonnyGuru took it one step farther and decided to test several connectors by himself, and the testing was pretty farthermost. To do this, he used a Corsair HX1500i PSU and three PCIe cables that were connected to Nvidia’s 16-pin adapter.

He took photos of the whole process, and those prove to be pretty handy — they illustrate what a well-inserted cablevision looks like and what to sentry out for when installing your own GPU. To keep an center on everything, the Corsair expert as well used a thermistor to runway the temperatures. A zilch tie was likewise used to minimize cable bending.

With all the prep out of the style, JonnyGuru really put the connectors through the wringer, damaging them and even tearing 1 of the wires off completely. Despite that, he didn’t experience any melting issues, and the temperatures maxed out at 53 degrees Celsius.

To bear witness his point well-nigh user error, the PSU proficient researched the cases where other RTX 4090 owners posted photos of their melted connectors. He compared them to properly seated connectors, reaching the decision that the cablevision was not fully continued to the graphics card in the cases where melting happened.

“It’s my opinion that the adapters are fine. Yous just have to brand sure the connector is fully inserted into your card and/or PSU. That said, I volition admit that the connectors are VERY Hard to insert completely. It is easy to call back the connector is in all of the way when it’southward not. But if the memory prune is not engaged, you lot will be able to pull the connector back out without squeezing the clip. If the connector and retention clip is fully engaged, the menu is definitely fully seated,” said JonnyGuru.

An Nvidia RTX 4090 with a properly seated power connector.

JonnyGuru had another tip for potential RTX 4090 owners — picking up dielectric grease and applying information technology to the plastic parts on the power connector; just a small amount. It just costs around $four, then it’s a pocket-sized expense to make for a little more safe.

When will Nvidia weigh in on the matter? We know that the company is taking this problem seriously and the testing is still ongoing, so let’due south promise that some sort of a recommendation for affected users will be released soon. Wccftech notes that a new revision to the 12VHPWR cablevision is currently under review by PCI-SIG, so perchance the gear up is closer than we might think.

Editors’ Recommendations

  • EVGA’due south lost RTX 4090 paradigm shows united states of america what could accept been
  • For the first fourth dimension ever, I’grand ready to switch to an AMD graphics card
  • Nvidia’due south RTX 4080 may exist up to 45% slower than the RTX 4090, only it’s all the same pricey
  • Great, at present fifty-fifty the RTX 4090 power connectors are starting to cook
  • AMD only subtly dunks on Nvidia’south melting RTX 4090 power adapters

Source: https://www.digitaltrends.com/computing/nvidia-rtx-4090-melting-may-be-caused-by-user-error/

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