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PCIe power connector design linked to melting GPU cables

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Revision as of 19:35, 1 September 2025 by Beanie Bo (talk | contribs) (added tone warning, article is too technical)

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12VHPWR and its revision 12V-2x6 (H++) are modern PCIe power connector standards published by the PCI-SIG that aim to deliver more power to PCIe devices such as GPUs but in a smaller foorprint than the older PCIe 6- and 8-pin connectors.[citation needed] Since 12VHPWR's debut on Nvidia's RTX 40-series GPUs,[1] the connector's been infamous for its design flaws that make it quite prone to ignition.[1][2] The minor revision 12V-2x6 aimed to mitigate these issues but ultimately succumbed to it's predecessor's shortcomings.[1] As of July 2025, there are still reports of the connectors catching on fire even when using accessories that advertise less risk of catching ablaze.[3]

Background

An early iteration of the connector without the sense pins first appeared on PCI-SIG member Nvidia's RTX 3090 Founders Edition (FE) graphics cards. Since then Nvidia has used the connector on some of their RTX 40 Series GPUs and all RTX 50 Series GPUs.

Melting connectors

Since its first debut on the RTX 4090, the connector has faced a myriad of incidents all revolving around them melting.[2] As an effect Thermal Grizzly, a computer cooling company started by XOC enthusiast Der8auer, cannot guarantee their WireView as fail-proof.[4]

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References

  1. ↑ 1.0 1.1 1.2 Burke, Steve; Lathan, Patrick; Makhnovets, Vitalii; Coleman, Andrew; Thang, Jimmy (2024-10-07). "12VHPWR is a Dumpster Fire | Investigation into Contradicting Specs & Corner Cutting". GamersNexus. Archived from the original on 2025-07-15. Retrieved 2025-07-15.
  2. ↑ 2.0 2.1 Wallossek, Igor (2022-10-27). "The horror has a face - NVIDIA's hot 12VHPWR adapter for the GeForce RTX 4090 with a built-in breaking point". igor´sLAB. Archived from the original on 2025-07-15. Retrieved 2025-07-15.
  3. ↑ Hartung, Roman (2025-07-13). "It Happened Again – RTX 4090 with Melted 12VHPWR". YouTube. Archived from the original on 2025-08-29. Retrieved 2025-08-29.
  4. ↑ Burke, Steve; Hartung, Roman; Gaglione, Mike; Makhnovets, Vitalii (2025-05-23). "Fixing the Unfixable 12VHPWR Connector, ft. Der8auer". YouTube. Archived from the original on 2025-08-29. Retrieved 2025-08-29.


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