1. Noctua showcased a Thermosiphon-based CPU cooler prototype at Computex 2024, which operates without a pump and relies on natural thermodynamic principles. 2. The prototype features a 240mm radiator cooled by two Noctua fans, utilizing vaporization to absorb heat efficiently. 3. Although still in early development, the Thermosiphon technology promises improved cooling performance and reliability without the noise and mechanical issues of traditional AIO coolers.