The fully-terminated 16-pin connector on the NVIDIA GeForce RTX 4090 ends up melting too

The fully-terminated 16-pin connector on the NVIDIA GeForce RTX 4090 ends up melting too

A few days ago, JonnyGuru reported that most fuse issues with NVIDIA GeForce RTX 4090 graphics card 16-pin “12VHPWR” connectors were caused by poor or incorrect connection. Now a new case has surfaced which shows a 16 pin ’12VHPWR’ cable melts despite being properly connected.

NVIDIA GeForce RTX 4090 16-pin ’12VHPWR’ connector melts despite proper connection, first case of 4090 Founders Edition also reported

Redditor u/m_hijazl posted on the NVIDIA subreddit how his custom ZOTAC GeForce RTX 4090 AMP Extreme AIRO ended up melting the 16-pin connector. User reported that his card was working fine and it was a huge leap in performance over his previous card, an RTX 3080, but while playing Cyberpunk 2077 his PC started flickering and he reportedly noticed a burning smell upon which he immediately cut power to the power supply. Checking the cables, it was confirmed that the 16 pin connector on the board had melted.

The user states that there was no extreme bend and that the cable was plugged in correctly. He even heard a click which confirms that the connector is well connected. The damage was done to his GeForce RTX 4090 graphics card and adapter, so the user has no choice but to return to his RTX 3080 for now until a solution is found. appropriate is found.

But that’s not all. So far, we’ve only seen NVIDIA GeForce RTX 4090 custom connectors melt, but the first case of a Founders Edition variant and its 16-pin “12VHPWR” connector has been reported in Taiwan. TechTuber, 阿軒仔【主頻道】, reports that the user who reported the issue was running the card on an EVGA 1000W G5 Modular PSU in a Corsair 7000X RGB enclosure which has enough headroom to support the huge graphics card. The PC owner also noticed a burning smell while playing League of Legends, after which he turned off the system and checked the cables that had already melted. Again, the connector and adapter were affected.

So as of now we can see that the problem is not related to the type of adapter being used (150V or 300V) nor is it related to the connection (fully plugged in or partially plugged in) and this is also not related to using older ATX 2.0 PSUs as ATX 3.0 PSUs also encountered the same issues. So if it’s not one of those three, it could be something much worse, like a design flaw. While the cases are still much smaller than the total number of NVIDIA GeForce RTX 4090 graphics cards shipped (100,000 shipped vs. <100 cases = 0.1%), it's still serious and many people just haven't yet reported their problems. Based on our findings:

  • 1 – A fully plugged in connector can melt
  • 2 – A partially plugged connector can melt
  • 2 – ATX 3.0 PSU can also melt the connector
  • 3 – Not a problem only with the 12VHPWR (16 pin to 4 x 8 pin) adapter
  • 4 – The cable can detach itself after a while (due to bends and resistance)
  • 5 – Planned revision of the PCI-SIG for December 6
  • 6 – NVIDIA is working on the plugin revision (rumor for now)

NVIDIA has yet to respond or share its findings, but we do know that the company is working with PCI-SIG to release a new revision of the adapter, and from what we’ve heard even a new revision of the socket 12VHPWR is on the way. . We will provide another update on this next week.

Are you ready to buy a graphics card with the 12VHPWR 16-pin connector cable?

Products mentioned in this article

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