You know NVIDIA is having a lot of trouble fitting the RTX 4090 and RTX 4080 into its 12VHPWR power connector. You’ve definitely seen the RTX 4090 HS literally melt after the power connector causing irreversible damage.
So there’s Nvidia Officially informed He explained that he had identified fifty cases worldwide. First investigations highlight improper installation of the adapter supplied with every RTX 4090, whether it’s Founders Edition cards or partner cards. NVIDIA itself provides the adapter to its partners. On the RTX 4090s the adapter could not be fully disassembled which caused the damage. Therefore, before plugging your graphics card into the motherboard, NVIDIA advises you to insert the adapter into the graphics card to make sure it is firmly and evenly connected. . You should only run the adapter with 4 8-pin connectors.
NVIDIA is constantly researching to find a way to ensure that the adapter is properly seated before powering up the graphics card. However, NVIDIA covers all RTX 4090s affected and damaged by this issue under warranty. A story that is not yet fully finished leads to the adaptation of this 12VHPWR connector.