NVIDIA, RTX 4090 and 12V-2X6 connectors

NVIDIA RTX 5090 graphics cards are melting power cables (again) — but who's to blame for this recurring GPU nightmare?
Melting cables are, once again, affecting high-end NVIDIA graphics cards, as a small selection of disgruntled GeForce RTX 5090 Founders Edition buyers and content creators take to social media to report unreasonably high temperatures radiating from its 600W connector.
Nvidia’s RTX 5090 power connectors are melting
Two owners of Nvidia’s new RTX 5090 Founders Edition GPUs have reported melted power connectors and damage to their PSUs. The images look identical to reports of RTX 4090 power cables burning or melting from two years ago.
GeForce RTX 5090 Power Connectors Are Melting Now: What You Should Know
Two RTX 5090 users have already suffered burned connectors, and if community analysis is right, more may be on the way.
Nvidia's RTX 5090 power cables may be doomed to burn
A rising tide of speculators are arguing that Nvidia's 16-pin 12VHPWR standard is designed with no safety factor, causing melting cables.
GeForce RTX 5090 power connector spotted at 150+ Celsius, prone to melting
A 12VHPWR power connector being used on the GeForce RTX 5090 has melted, sparking an investigation into the power draws of the RTX 5090.
Despite assurances, Nvidia’s RTX 5090 is melting power plugs after all
Last week, RTX 5090 cards started dying after Nvidia’s driver update. More recently, one Reddit user named /u/ivan6953 reported in the Nvidia subreddit that the power connector on his RTX 5090 had melted while playing Battlefield V.
Surely not again: Worrying analysis shows Nvidia's RTX 5090 Founders Edition graphics card may be prone to melting power connectors
der8auer thinks none of the above. Using his own RTX 5090 FE, he loaded the GPU up with Furmark and found some worrying results using his own, higher spec 12V-2x6 cable, which had been in service for six months, and a 1600 W Corsair PSU.
It's not just the GeForce RTX 5090... we've now got melting connectors on the RTX 5080
Redditor posts picture of his melted 16-pin power connector on his PSU, which had NVIDIA's new GeForce RTX 5080 Founders Edition graphics card inside.
Nvidia GeForce RTX 4090 and 5090 prototypes exposed — development and testing cards had four 16-pin power connectors
A leaker managed to get ahold of some of Nvidia's latest-generation development/bring-up boards. The prototype hardware features extra power interfaces, test points, debugging interfaces, and plenty of jumpers scattered around the PCB.
The First Reports Of Melted NVIDIA GeForce RTX 5090 FE 12VHPWR Power Connectors Have Arrived
Reports of melting 12VHPWR connectors are starting to come in, with the first victim losing both his PSU and RTX 5090 FE.
These leaked GPU prototypes make the RTX 5090 look like a toy
If you thought the RTX 5090 has monstrous power requirements, you'll be floored by these leaked Nvidia GPU prototypes.The ...
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Cable maker advises against using old 12VHPWR cables with RTX 50-series GPUs
Moddiy has warned users against using its older 12VHPWR-rated power cables with RTX 50-series products. It recommends only using its cables manufactured in 2025.