ComfyUI nodes trigger RTX 5070Ti system crashes
Pitiful-Indication95 · reddit · 2026-09-02
A user reported that using Spectrum or Sage attention nodes in ComfyUI caused their RTX 5070 Ti to crash completely, leading to black screens and the system failing to detect the GPU even after cold restarts. Hardware stress tests (OCCT) passed, and reinstalling Nvidia drivers (616.56) or CUDA 13.4 did not resolve the issue. The culprit appears to be specific node operations within a workflow.
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