● Covered by 1 source · 1 reportLow impact1 neutral
Modder der8auer passively cools Ryzen 7 9800X3D by 19C using 110cm 3D-printed chimney
Key points
- der8auer built a 110cm 3D-printed chimney for passive cooling.
- The chimney reduced CPU temperature by 19C on a Ryzen 7 9800X3D.
- The cooling method utilizes the natural "stack effect" or chimney effect.
- The experiment showed significant airflow without mechanical fans.
Passive Cooling Experiment with Chimney Effect
Modder der8auer conducted an experiment to passively cool a PC using a 110cm tall 3D-printed chimney. The setup aimed to exploit the "stack effect," also known as the chimney effect, which uses natural convection driven by temperature differences to move air.
Methodology and Setup
The test bench included an AMD Ryzen 7 9800X3D processor with a water-cooling system. Initial tests with a 10cm chimney showed a 0.5C temperature drop. Extending the chimney to 30cm resulted in a 5C drop over 30 minutes. The final 110cm chimney was constructed from multiple 3D-printed sections.
Temperature Reduction Results
With the 110cm chimney, the CPU temperatures, which previously peaked at 90C, dropped to 71C, a reduction of 19C. Water temperatures in the cooling loop also decreased significantly, reaching 50C from an initial 61C. A fog machine demonstrated visible airflow through the chimney, confirming the stack effect's operation.
Implications for PC Cooling
This experiment highlights the potential of natural convection for PC cooling, offering an alternative to active fan-based systems. While not a direct replacement for high-performance fan cooling, it demonstrates that significant temperature reductions are achievable through passive means by leveraging fundamental physics principles.
✨ This summary was generated by AI from the outlets' reporting listed below. It is not independently verified and may contain errors — check the original sources. How BrevFeed works →
The daily brief
One email each morning: the day's tech stories, clustered across outlets and summarized. No account needed.
One email a day. Unsubscribe in one click, any time.
Today's brief
Spend a few minutes, get the whole day. Every topic's top stories in one hands-free rundown — listen, watch, or read the transcript.
▶ Play today's brief
New every morning, and the back catalogue is archived by date.
Reporting from
Modder der8auer constructed a 110cm 3D-printed chimney to passively cool an AMD Ryzen 7 9800X3D processor, reducing its temperature by 19 degrees Celsius without fans. This experiment demonstrates the effectiveness of the "stack effect" for PC cooling, offering an alternative to traditional fan-based systems.