12VHPWR

Uncommon card · No. 163506

The 16-pin 12VHPWR connector is a standard for connecting graphics processing units (GPUs) to computer power supplies for up to 600 W power delivery. It was introduced by Nvidia in 2022 to supersede the previous 6- and 8-pin power connectors for GPUs. The stated aim was to cater to the increasing power requirements of Nvidia GPUs. The connector was formally adopted as part of PCI Express 5. The connector was replaced by a minor revision called 12V-2x6, introduced in 2023 with PCIe CEM 5.1 and PCIe ECN 6.0, which changed the GPU- and PSU-side sockets to ensure that the sense pins only make contact if the power pins are seated properly. The cables and their plugs remained unchanged. The change is intended to prevent melting due to partial contact, but melting continued to be reported for GPUs with this new socket. There is a significant change in power negotiation with a new sense pin added. 12VHPWR connectors are marked with an "H+" symbol, whereas 12V-2x6 connectors are marked with an...

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