The NVIDIA GeForce RTX 4090 is a high performance graphics card that requires adequate power in order to render extremely detailed graphics for today's games.
Choosing the Best PSU for Nvidia's GeForce RTX 4090 GPU - TechReviewer
Best GPU for 700W and 750W Power Supply
What power supply do you need for the RTX 4090 and RTX 4080?
PC won't start after new PSU and RTX 4090 installation : r/pcmasterrace
PSU for RTX 4090 : r/nvidia
NVIDIA RTX 4090 Requires an 850W Power Supply at the Least, but 1000W is Recommended
Some RTX 4090 Graphics Cards Recommend a 1200W Power Supply
ROG Strix GeForce RTX™ 4080 SUPER 16GB GDDR6X, Graphics Card
Best PSU for RTX 4090
Does the Nvidia GeForce RTX 40 Series require a new PSU?
PC won't start after new PSU and RTX 4090 installation : r/pcmasterrace
5 best PSUs for Nvidia GeForce RTX 4080
ASUS recommends 850W+ power supplies for GeForce RTX 4090/Radeon RX 7900 XTX systems