RTX 5090 modder claims to have solved melting power connectors with auxiliary 8-pin board
Over on Reddit, user DallasGrave outlined the approach taken when developing the mod. In short, the fix utilizes a pickup PCB soldered to the contacts of the original 12VHPWR header that feeds an auxiliary dual eight-pin board. This effectively spreads the load across three sets of cables, which significantly reduces... Read Entire Article
A hardware enthusiast has developed a promising fix for Nvidia's RTX 5090 GPU, which has a history of power-related issues. The fix, shared on Reddit by user DallasGrave, involves attaching an auxiliary dual eight-pin board to the original 12VHPWR header. This spreads the load across three sets of cables, significantly reducing power draw and temperature.
DallasGrave tested the modded card at full load for 48 hours (at 550W), and the cable temperatures never exceeded 40 degrees Celsius. The user, who is affiliated with Grave PC, claims the mod is relatively affordable and comes with a warranty. They also plan to offer a PNY card with the same modification directly from their company, again with a full warranty.
DallasGrave suggested that replacing the header with a higher current model could work, but that would not fix the cable issue. The motherboard's 12VHPWR is rated too high, the user said, adding that it should never have exceeded 350-watts. This mod appears to be one of the most effective solutions yet, offering a more universal approach compared to previous attempts.
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