videocardz PCI-SIG concerned about PCIe Gen5 power cable adapters

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The RTX 40 series will need more power, at least the high-end models will. The RTX 4090 has default TGP of 450W with even higher power for custom models. For such TGP, three 8-pin power cables are needed and even the slightest TGP adjustment means that 3×150W power spec is exceeded.

PCI-SIG has informed its member that the organization is aware of potential thermal variance for 12VHPWR adapters. The organization is currently investigating reports of potential overcurrent risk when using such adapters.

 

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Dear PCI-SIG Member,

Please be advised that PCI-SIG has become aware that some implementations of the 12VHPWR connectors and assemblies have demonstrated thermal variance, which could result in safety issues under certain conditions. Although PCI-SIG specifications provide necessary information for interoperability, they do not attempt to encompass all aspects of proper design, relying on numerous industry best-known methods and standard design practices. As the PCI-SIG workgroups include many knowledgeable experts in the field of connector and system design, they will be looking at the information available about this industry issue and assisting in any resolution to whatever extent is appropriate.

As more details emerge, PCI-SIG may provide further updates. In the meantime, we recommend members work closely with their connector vendors and exercise due diligence in using high-power connections, particularly where safety concerns may exist.

Thank You,

 

https://videocardz.com/newz/pci-sig-concerned-about-potential-thermal-variance-with-12vhpwr-pcie-

gen5-power-cable-adapters

 

 

Edited September 14, 2022 by UltraMega