GoKawiilReddit modder builds quad 8-pin adapter to replace RTX 5090's 16-pin connector
Reddit user DallasGrave created a custom power-conversion kit that bypasses Nvidia's 16-pin (12VHPWR/12V-2x6) connector on the RTX 5090, soldering a harness directly to the card's PCB power rails and routing power through four standard 8-pin PCIe connectors instead. The four 8-pin connectors together match the 16-pin connector's 600W capacity while spreading current across more, larger, and more widely spaced pins.