Nvidia thinks RTX 4090 cables melted because they weren’t fully plugged in

Weeks after Nvidia introduced that it was investigating experiences that the facility cables for its RTX 4090 graphics card had been melting and burning, the corporate says it might know why: they simply weren’t plugged in all the way in which.

In a put up to its buyer assist discussion board on Friday, Nvidia says that it is nonetheless investigating the experiences, however that its findings “recommend” an insecure connector has been a standard subject. It additionally says that it has obtained round 50 experiences of the difficulty.

Nvidia’s flagship card makes use of what’s often known as a 12VHPWR energy connector, a brand new normal that is not natively supported by many of the energy provides that individuals have already got in their PCs. Because of that, it ships an adapter — or “energy dongle,” as Friday’s put up calls it — in the field. Users’ preliminary experiences blamed the adapter, with some saying that the melting cable had broken their $1,599 GPU as effectively.

It may very well be straightforward to learn the corporate’s findings as shoving blame onto the customers. Sure, Nvidia does not come proper out and no that it is consumer error, but it surely’s closely implied in the put up. It additionally looks like a really handy clarification, since folks have been speculating for nearly a month that the difficulty is attributable to one thing extra advanced, like dangerous soldering or wires too small to reliably deal with the huge quantities of energy pumped by way of.

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However, GamersNexus, an outlet that is revered in the PC-building group for its rigorous testing, principally got here to the identical conclusion earlier this week. A video posted on Wednesday by the outlet, which inspected broken adapters despatched in by viewers and did intensive testing and reporting on the difficulty, confirmed that the connectors had put on strains, implying that they had not been utterly inserted into the slot. GamersNexus even says that some folks appear to have missed a full connection by a number of millimeters. Its video exhibits {that a} unfastened connection might trigger the plug to warmth up dramatically, if it had been plugged in poorly and tilted at an angle.

Nvidia’s put up features a image of what the connector seems like when it isn’t fully plugged in, and it appears a lot simpler to overlook than one thing that is out by a full 2mm and being held at an angle (doubtlessly because of the cables being pulled again too tightly throughout set up). It’d be even simpler to overlook with a third-party RTX 4090 card as an alternative of the Nvidia model proven in the pictures under.

If you’ve got bought one among these playing cards in your pc, you need to most likely double-check yours seems like the underside one.

Two photos showing one connector that's mostly, but not fully plugged in, and a fully plugged in connector.

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It’s price noting although, that Nvidia might not be utterly innocent right here. Another factor that jumps out in regards to the image it posted is that the connector has a locking key. In concept, that is a characteristic that might stop this kind of factor from taking place, so long as it provides good suggestions once you plug it in. According to GamersNexusnonetheless, the adapters do not actually audibly click on into place, even when fully inserted.

That apart, the testing completed by Nvidia and GamersNexus does not appear to level to manufacturing defects as the principle perpetrator (the outlet’s video on Wednesday stated that particles left throughout manufacturing could have been an aggrevating issue). Either means, although, an unnamed spokesperson for the corporate informed GamersNexus on Friday that “any points with the burnt cable or GPU, no matter cable or GPU, it is going to be processed” for a substitute.

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