Gaming PC

GeForce RTX 4090 Power Adapter Dissected

As reported by Igor Wallossek: Igor’s laboratory, (opens in new tab) The included quad 8-pin to 16-pin adapter with GeForce RTX 4090 is hackable and can draw 600W of power from just three 8-pin PCIe power connectors. But of course, this is just an experiment done in the name of science. I wouldn’t recommend trying this with an adapter for obvious reasons. Always use the adapter that came with your GeForce graphics card and follow Nvidia’s specifications. However, if someone reverse-engineers this hack to create a product that you can sell online, you should avoid it.

Nvidia’s power adapters are more than just power splitting devices. An adapter that detects which of the four 8-pin power plugs is active. This allows the end user to make the card functional by only running 3 auxiliary power connections to the adapter, but the TDP is as low as 450W for him. With all four plugs connected, the GPU can access 600W if the power delivery system allows it.

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