The 16-Pin power interface of the NVIDIA RTX 5090 graphics card has a melting problem again. Although the correct connection has been confirmed in advance and the original 12V-2×6 power cable is used, the risk of overheating cannot be avoided.With the release of "Ming Dynasty: Yuanxu Yu", the editor-in-chief of DSO Gaming, John Papadopoulos, also tested the game, and during the test it was discovered that the power interface of the graphics card was melted.
When the incident occurred, the graphics card did not crash or experience errors. It was not until smoke started to appear that he discovered that the contacts at the bottom of the interface had melted and deformed. This is one of the few cases with complete records.
At first, there was no abnormality in the GPU load for 20 minutes, and the temperature remained below 78°C. It was not until later that smoke and burnt smell was observed at the bottom of the interface that the disaster occurred.
John said that he has strictly followed the recommended installation method, and the socket has been "fully inserted" into the graphics card interface. Some readers thought there was a "gap" between the interface and the connector after seeing the picture, but this is the deepest the connector can reach.
John believes that this is exactly the problem: when the socket does not completely match all the contacts, the current will flow concentratedly through a small number of fully contacted pins, causing local overheating. Even if there is no problem on the surface, the internal contact may still be incomplete, causing catastrophic consequences.
And John was very familiar with how the various devices worked and documented all the details from the beginning. Even if the connectors didn't make full contact, it was due to a design flaw in the connectors, after all, it had happened so many times.
After the burnout occurred, John unplugged and replugged the GPU (without replacing the power cord), and the system started to operate normally.This further highlights that the 12V-2×6 connector design lacks a "correct insertion" detection mechanism, and users cannot judge whether all conductive points are safely contacted.
This situation happens to media testers, and the risk to ordinary consumers may be higher. Starting from RTX 4090, the 12VHPWR and 12V-2×6 specifications adopted by NVIDIA have been controversial.
Although the new version of the connector has improved some problems, this incident showed that there are still defects of "uneven current distribution and lack of insertion detection" between the connector and the graphics card.