RTX 4090 Power Connector Melts Again, Even With NVIDIA’s Official Adapter
It's the AMP Extreme this time.

R.I.P. to another Ada Lovelace GPU, as yet another report of an NVIDIA 4090’s 12VHPWR connector melting has surfaced online.
Another NVIDIA 4090 Owner Reports a Melted Power Connector, Says the GPU Wasn’t Under Stress
NVIDIA’s 40-series was notorious for melting its power cables. The company introduced a new power delivery mechanism with Ada Lovelace, and since then accounts of melting connectors have surged through the roof. But, most of the time, the issue was brushed under the rug in favour of the argument that users had used non-official power cables, or an adapter for an unsupported PSU.
This time, however, we’ve found another instance of NVIDIA’s 4090 falling victim to a melted connector on both sides. Not just the GPU but also the PSU suffered damage, and the user stated that they had used NVIDIA’s official adapter for the 16-pin 12VHPWR connector.


According to the Redditor u/AniDarko, their PC restarted a couple of times before the incident. But, the following day, it suddenly shut off, and upon inspection, it was seen that the cabling on both ends had melted off, causing irreversible damage to the PSU and the GPU.
The user explicitly stated that the GPU was not under heavy load and that they actively monitored its temps. They also stated that their main use case was playing FPS video games.
Last month, we reported that the connector can reach temperatures upwards of 150°C on the PSU side. While the cables may handle such high temperatures for long intervals, the plastic on either side cannot physically withstand this level of heat, leading to melting, even when no load is applied to the GPU.
Even with the updated 12VHPWR connector and NVIDIA’s official power adapter, reports of melting connectors continue to surface online. At the moment, the information surrounding the cause of the issue is vague, but rest assured, we will keep you updated as new information becomes available.