Modder Uses Air Conditioner to Keep RTX 4090 and Core i9-13900K Exceptionally Cool

A Chinese tech enthusiast demonstrates an unconventional cooling system, achieving sub-30°C temperatures under stress tests.

The setup integrates a 12,000 BTU Xiaomi air conditioning unit with a liquid cooling reservoir to maintain low temperatures for a PC system.
During stress tests, the RTX 4090 GPU and Intel Core i9-13900K CPU remained below 30°C, with GPU hotspot temperatures peaking at 36°C.
The modder, known as 'Electrolytic Sodium Carbonate' on Bilibili, plans to adapt the system for future use with an RTX 5090 and Core i9-14900K, pending additional components.
The air conditioner consumes 1.2 kW of power, making it an energy-intensive but effective cooling solution compared to traditional methods.
This approach builds on previous extreme cooling efforts, such as passive cooling in blizzard conditions and extensive copper or tubing setups.