![]() The chipmaker does warn against using third-party adapters, such as the Cablemod and the upcoming Seasonic one, which will void your warranty - though note that all the cases of melted connectors so far have been with the official Nvidia adapter. ![]() Did Nvidia honestly not know about the issue? If so, it may want to rethink its procedures. We've checked the GeForce RTX 4090's documentation and online user manuals, and there are no instructions or guidelines on manipulating the 16-pin power connector or its cable. It's curious that the potential problems with the power adapter apparently never showed up in Nvidia's testing. On the flip side, there aren't many ATX 3.0 units on the market, and they are expensive. These power supplies already come with the 12VHPWR connector, so adapters aren't needed. ATX 3.0 power supply owners seem unaffected. Up to now, we've only seen complaints from consumers using the bundle 4x8-pin to 1x16-pin power adapter. PCI-SIG detected the same mating issues around 40 cycles. Remember that the 12VHPWR power connector has a service life of 30 connection cycles. While right-angle adapters can reduce cable bending, owners aren't out of the danger zone yet. The connector from the photograph is a sample, and Seasonic didn't reveal the launch date or pricing. Unfortunately, we can't see the other end of the cable, so we're unsure if Seasonic's product is an adapter or a special cable designed to connect directly to the brand's power supplies. Seasonic's 90-degree connector doesn't look as pretty as Cablemod's adapter, but it should work similarly. While the adapter sells on October 31, the pricing is unknown. Cablemod has announced the brand's custom right-angle 16-pin power adapter, which uses a multiple PCB design and promises zero bending. Seasonic isn't the only one with a workaround. However, we've seen user feedback that the problem persists even at longer distances, for example, 40mm. Cablemod, a popular custom cable vendor, recommends at least 35mm of space from the 16-pin power connector before bending the cable. As a result, the load becomes unbalanced over the remaining terminals, which increases the risk of overheating and melting the connector. Like any power cable, bending the 16-pin adapter's cable immoderately, whether vertically or horizontally, can cause the terminal to come loose and mess up the integrity of the mating.
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