After several reports appeared about the issue of NVIDIA GeForce RTX 4090 graphics cards facing burning issues, the company has ordered the component maker brands to send the graphics cards taken by them to the NVIDIA headquarters for further investigation.
This happened because an adapter cable connecting four 8-pin PCIe power cables to a single 16-pin PCIE header was found to cause overheating of the header when the cable near the header was bent.
In short, it was found that these 12VHPWR cables were not soldered properly and the contact between the cable part and the plug head was not very neat, and this caused the overheating problem.
This issue, combined with the high power draw (450-600W) required by the NVIDIA GeForce RTX 4090 graphics card caused the plug to melt, although it was also reported that the graphics card still worked without problems when the cable was changed.
So far it appears that NVIDIA will continue to use this 12VHPWR power plug on the graphics card, and whether they will continue to use it for the NVIDIA GeForce RTX 4080 graphics card that will be launched next month is not yet known.