NVIDIA RTX 5090 Gets Quad 8-Pin Power Connector Mod To Bypass Melting-Prone 12V-2×6, Nearly Halves Current Per Wire - Wccftech
A custom modification replaces NVIDIA's problematic 16-pin power connector on the RTX 5090 with four traditional 8-pin PCIe connectors, reducing current per wire by nearly half.
The modification can operate independently of or alongside the original 16-pin connector, distributing electrical load across additional conductors. According to its creator, current per conductor is nearly halved compared to the standard 12V-2x6 configuration, with individual conductors drawing approximately 4.1–4.4A at 600W.
The modder also reports a temperature reduction of around 20°C, with the custom PCB reaching just 45°C at 800W. The conversion has been tested at up to 800W using a shunt-modded RTX 5090, though such testing doesn't establish long-term reliability at power levels exceeding standard specifications.
Testing and Availability
The module incorporates fused power connections, with optional active monitoring and current-limiting functionality also planned. More detailed testing, including live current and temperature measurements and a 24-hour sustained load, is reportedly underway.
The conversion will eventually support numerous graphics card models, including NVIDIA's Founders Edition variants. A mail-in installation service is planned, alongside a Las Vegas storefront expected to open in December.
Persistent Connector Issues
The 12VHPWR/12V-2x6 GPU connector melting saga started with NVIDIA's RTX 40 Series GPUs and continues to affect RTX 50 models and some AMD RX 9070 XT cards. This isn't the first attempt to address NVIDIA's connector woes through alternative power delivery.
TecLab previously developed a custom RTX 5090 modification that successfully powered the flagship Blackwell GPU using three 8-pin connectors, demonstrating the viability of older standards when properly implemented. Pricing for the new quad 8-pin connector hasn't been finalized.
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