With the resurgence of the connector meltdown scare, users who were lucky enough to snag an RTX 50 GPU at launch have been worried their card is next on the chopping block. A detailed analysis of Nvidia’s connector design this generation shows several blind spots and obvious design setbacks versus the previous iterations. As shared by UNIKO’s Hardware, a user at Bilibili has engineered a PCB, attached to their 16-pin connector that reads per-pin current values and even incorporates an alarm for safety.
The 16-pin connector, better known as 12VHPWR or 12V-2×6 (the most recent iteration) features four sense pins, six current pins (+12V), and six ground pins. In theory, all six 12V pins should be able to supply 575W of power (RTX 5090 TGP), however, internal cable cuts and/or improper cable seating can lead to uneven current distribution and melted connectors.
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