TecLab Engineers Direct Power Solution for RTX 5090 Melting Connector Issue
The persistent issue of melting power connectors on NVIDIA’s flagship RTX 5090 graphics cards has been a major concern for PC enthusiasts and professionals alike. In a bold move, Brazilian YouTube group TecLab has demonstrated a unique workaround: bypassing the problematic 16-pin connector entirely by soldering power wires directly onto the graphics card’s PCB.
Innovative Approach to a Longstanding Problem
TecLab’s experiment centered on the Galax RTX 5090D HOF OC LAB XOC, a high-end, extreme-overclocking model equipped with two 16-pin power inputs and a custom BIOS capable of handling up to 2,000W—far exceeding the standard RTX 5090’s 575W TDP. The team’s modification was presented as a tongue-in-cheek critique of NVIDIA’s ongoing connector issues, highlighting the frustration many users feel after repeated reports of melting connectors, even after NVIDIA’s attempts at redesign.
For the demonstration, TecLab removed the card’s stock cooler and operated the exposed GPU under an industrial liquid chiller, supplementing cooling with two loosely mounted fans. Standard 16-pin PSU cables were converted into bare wires, which were then carefully soldered onto the power traces of the PCB, completely eliminating the need for the original connector.
Performance and Safety Considerations
During testing, the modified RTX 5090 drew approximately 50A on the 12V rail, translating to a power consumption of around 600W. The card successfully booted and completed benchmark runs without any reported issues. While TecLab did not share specific temperature data, the setup’s stability under heavy load suggests that the direct soldering method effectively handled the high current demands.
The melting of 16-pin and 12V-2x6 connectors has been a recurring problem for the RTX 5090 series since its release, with multiple confirmed incidents reported over the past year. Despite NVIDIA’s efforts to address the issue with a redesigned connector, the problem persists for many users. TecLab’s direct-to-PCB power delivery is not a practical solution for everyday users—especially given the risks and the high cost of the hardware—but it does underscore the limitations of current connector standards.
Implications for the Future of GPU Power Delivery
While soldering power wires directly to a graphics card’s PCB is not recommended for typical consumers, TecLab’s experiment highlights the need for more robust and reliable power delivery solutions in high-performance GPUs. The fact that a DIY modification can outperform official fixes raises important questions about the long-term viability of the 12V-2x6 connector standard and the engineering challenges facing next-generation graphics hardware.
