On May 3rd, RTX 4090 users reported that there is still a risk of interface melting even when reducing its power consumption.
It is reported that users of the MSI GeForce RTX 4090 Suprim X 24G graphics card experienced melting at the 16-pin power supply interfaces on both the graphics card and power supply side when the power limit was set to 75%.
This indicates that reducing the power consumption of the RTX 4090 does not prevent melting failures.
Since NVIDIA released the RTX 4090 graphics card in October 2022, users have been complaining about the 16-pin power supply interface.
Subsequently, the reference version of the RTX 4090 graphics card adopted an improved power supply interface to address the burning issue.
The new connector shortens the sensing pins, disables high-power mode when the cable is not fully inserted, and some manufacturers have also deployed this new "12V-2 x 6" connector on the power supply (compatible with 12VHPWR, meaning existing power supplies and cables do not need to be replaced).
With the decrease in power consumption, issues of burning out have disappeared for GPUs like the RTX 4080. However, it is evident that the 12VHPWR interface has significant flaws and is not suitable for high-power top-tier graphics cards.
