AI-rewritten: This is a summary of an article from Tom’s Hardware, rewritten by AI (Qwen, running locally) to make it easier to read. The facts come from the original article – read it for the full story.

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Reddit user u/DallasGrave shared a fix for his RTX 5090 graphics card, whose 12VHPWR connector was overheating. He attached a custom-made power distributor to the back of the GPU that splits the electrical load across more wires to reduce heat. The modder is connected to GRAVEPC.com, a company known for custom cooling solutions in small form-factor PCs. When asked if this modification would be covered under PNY’s warranty, u/DallasGrave stated they are a PNY partner and customers can buy similar cards with full warranty coverage directly from them. However, this specific mod is not currently available on their website.

The 12VHPWR connector issue affects many Nvidia graphics cards because they draw high current through what functions like a 12-pin connector. The four smaller pins act as sensors, while the remaining twelve are split between six +12V and ground connections. These connectors typically use high-current-rated cables that should handle up to 600W. Melting often occurs due to poor connections causing high resistance and heat buildup, or uneven current distribution. Older multi-8-pin setups had higher safety margins, but modern cards draw more power through fewer wires.

To fix the problem, u/DallasGrave soldered additional connections to the power rails directly on the card’s circuit board and routed them to a custom power distributor containing its own PCB and two female 8-pin connectors. The housing shows signs of resin printing, though it is unknown if he designed it himself or if it includes protection components like capacitors or fuses. During stress tests running the card at full load for 48 hours while pulling 550W, he reported the joint never exceeded 40 degrees Celsius.