Although NVIDIA has incorporated an enhanced 12V-2x6 power connector into its RTX 50 series graphics cards, the persistent issues of overheating and even melting of the 16-pin power connector have not been entirely eradicated. Recently, a hardware aficionado has garnered attention by customizing the power supply system of an RTX 5090 graphics card. While keeping the original 12VHPWR connector intact, the enthusiast welded an additional small power-taking PCB. This modification channels power to two 8-pin PCIe slots on an auxiliary board, allowing the graphics card to be powered by three power cables simultaneously. Post-modification, the current load on each wire was significantly reduced to around 3A. The graphics card operated continuously for 48 hours under a full-load power consumption of 550W, with the temperature of the power cables staying well below 40°C. Previously, there were numerous instances of cable melting attributed to uneven current distribution and heightened contact resistance in the RTX 5090's 12VHPWR connector, with some users reporting cable temperatures soaring up to 175°C. However, it's important to note that this modification scheme necessitates soldering the auxiliary board directly onto the graphics card connector contacts, a process that could potentially damage the graphics card if not executed with precision and will certainly void the warranty. At present, there are no plans for mass-producing this modification.