Modder der8auer builds 110cm 3D-printed chimney to passively cool Ryzen 7 9800X3D without fans, cuts temps by 19C without fans — radically simple PC mod cuts uses the 'stack effect'

Summary

What if instead of relying on mechanical pressure generated by fans, you could just passively cool your PC using natural convection? That's what der8auer managed to pull off in his new experiment using the stack effect that targets a similar pressure differential but achieves it without any fans.