Forget the GPU temp, even the Nvidia GeForce RTX 5090 power cable can hit 150°C
Thermal images of the new graphics card show one wire of the 16-pin 12VHPWR cable drawing over 20A and running at a high temperature.
tom's Hardware on MSN4h
RTX 5090 cable overheats to 150 degrees Celsius — Uneven current distribution likely the culprit
Investigation of a melting RTX 5090 has revealed a new uneven current distribution problem which leads to dangerously high temperatures.
TweakTown8d
NVIDIA RTX 5090 GPU works fine with just 3 x 8-pin connectors, runs at 450W and only 5% slower
Who needs 4 x 8-pin connectors? Well, you do for the best performance, but testing suggests a trio of connectors comes mighty ...