A modder has addressed the melting power connector problem on Nvidia's RTX 5090 by soldering additional connections directly to the graphics card's power rails and routing them to a custom power distributor. The modified card reportedly ran at full load, pulling 550W for 48 hours, and according to the modder, never exceeded 40C even at the joint. The fix targets the 16-pin connector design used across many Nvidia graphics cards, which draws high current through what is essentially a 12-pin connector.
The 16-pin connector's four smaller pins serve as sensors, while the remaining 12 are divided between six +12V and ground connections. The connector typically uses high-current-rated 16AWG cables, which in theory should handle up to 600W. Some melting cases are attributed to poor connections where pins fail to make sufficient contact, causing high resistance and heat buildup, while uneven current distribution is also a common source of problems. Older multi-8-pin connector setups rarely experienced these issues because their safety margins were higher.
The modder's distributor contains a PCB where the wires connect and where two female 8-pin connectors are placed. It is unknown whether the modder designed the distributor himself or whether it contains other power-delivery or protection components, such as capacitors and fuses. The distributor appears custom-made for his specific graphics card, and the housing shows signs of resin printing.
When asked by a commenter whether the modification would be covered under PNY's warranty, the modder said he is a PNY partner and that customers would be able to buy a PNY-specific card with a similar modification directly from him, with what he described as a full warranty. The mod is not currently listed on his website. PNY has not been reliable about honoring warranties for the 12VHPWR issue with third-party cables, including a recent case in which a third-party cable melted during use, so the warranty claim should be treated with caution.
The 12VHPWR connector has been criticized as a poor design, since confining that much power to only six wires creates a sensitive system in which slight misalignment or uneven current distribution can cause connector-melting temperatures. This mod is cleaner and more visually appealing than other power modifications, such as one performed on a Galax RTX 5090, but it remains invasive because it requires wires to be soldered directly to the card's power rails. The modder is identified in the source article's author information as Jhet Borja, a freelance writer.
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