The Passive Rediative Coolimg Architecture for Post-Silicon Era

This project is a compact USB-to-PWM fan controller based on the ATtiny85, built for GPU passthrough setups where the host cannot read GPU sensors. A VM reads GPU temperature and drives the fan via a USB CDC serial interface, enabling simple external temperature control.

This is a simulation of the Founders Edition 5090 Nvidia GPU:

Implements alternating fluid-solid strategy for orders of Magnitude speedup in Electronics Cooling CFD simulations

Memory-junction-aware fan control + thermal kill-switch for headless NVIDIA GPUs (GDDR6/GDDR6X). Fixes the factory fan curve that ignores VRAM temp. No X server / Coolbits.