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RTX 3070 monitor turns off when rendering AI videos with ComfyUI Minimax H3

This story is from 2026-09-17. It is preserved in the archive; the latest stories are on the live feed.

Hi everyone! I’m pretty new to AI video generation and I’m having a weird issue with ComfyUI. Whenever I try rendering AI videos using Minimax H3 , my monitor suddenly turns off during the render. The PC itself seems to still be running, but I lose display and have to restart the computer. My specs…

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  1. 2026-09-17 03:27 · r/comfyui
    RTX 3070 monitor turns off when rendering AI videos with ComfyUI Minimax H3

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