# RTX 5090 Mod Replaces 12V-2x6 with Quad 8-Pin

October 22, 2026 at 01:50 PM

> A modder has developed a prototype PCB that replaces the RTX 5090 power connector with four 8-pin headers to improve thermal performance.

Reddit user **DallasGrave** has developed a prototype modification for the **Gigabyte** **GeForce RTX 5090**, replacing the standard 12V-2x6 plug with four 8-pin PCIe connectors. Reported by **HKEPC** on October 18, this Quad 2x8 Header Conversion uses a custom soldered PCB.

The setup utilizes twelve 12V conductors compared to the six found in standard 16-pin cables. At 600W, the modder measured 4.1 to 4.4A per conductor, significantly below the 9.5A **PCI-SIG** rating. Signaling ensures the card recognizes the full power availability.

This modification reportedly runs 20°C cooler than the original connector. While a custom backplate is currently in development, no retail price or release date has been announced for the conversion kit, which remains in the functional prototype stage.


[#RTX5090](<https://hardwarebrief.com/hashtag/rtx5090>) [#Nvidia](<https://hardwarebrief.com/hashtag/nvidia>) [#GPUModding](<https://hardwarebrief.com/hashtag/gpumodding>) [#Gigabyte](<https://hardwarebrief.com/hashtag/gigabyte>) [#PCGaming](<https://hardwarebrief.com/hashtag/pcgaming>)

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