6 Years Ago This Idea FAILED.. Now it’s WORKING
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Check out the CORSAIR Platform:4 Elevate Desk at: lmg.gg Noctua is going pump-free. Their prototype Thermosiphon cooler uses boiling coolant and physics to deliver liquid cooling with zero moving parts, and it might finally be ready for prime time. Linus takes a deep dive into how it works, why it’s been so hard to get right, and what’s changed this time around. Plus, a look at Noctua’s first AIO cooler, upgraded fans, and all the wild third-party collabs they brought to Computex. Discuss on the Forum: linustechtips.com ► GET OUR MERCH: lttstore.com ► GET EXCLUSIVE CONTENT ON FLOATPLANE: lmg.gg ► GET A VPN: piavpn.com ► SPONSORS, AFFILIATES, AND PARTNERS: lmg.gg Purchases made through some store links may provide some compensation to Linus Media Group. CHAPTERS --------------------------------------------------- 0:00 Intro 1:19 Sponsor 1:43 Why it’s so hard to make this work 4:02 Noctua’s workaround for boiling issues 6:20 A12x25 Gen 2 fans 7:13 A Noctua AIO?! 9:12 Third-party collabs at the Noctua booth 9:53 Sponsor 10:38 Credits
Linus opens the video by showcasing Noctua’s new thermosiphon cooler, a pumpless liquid cooling system that uses boiling coolant to circulate without a pump. He explains the core idea, the challenges of uneven heat distribution, and how Noctua’s design overcomes these issues with taller copper structures and impingement jets that accelerate flow. The video then dives into the technical details of the A12X25 Gen 2 fan, its torque motor, and the acoustic blocker that reduces vibration, followed by a discussion of the third‑party collaborations that helped bring the product to market. In the second half, Linus highlights the booth’s layout, the new AIO cooler, and the future release timeline, concluding with a look at pricing and warranty. The video is structured around three main sections: an introduction to the thermosiphon concept, a deep dive into the fan and acoustic design, and a final overview of the booth and market plans. Linus provides clear explanations of the physics behind the boiling coolant, the importance of bubble removal, and the role of the acoustic blocker in noise reduction. He also touches on the partnership with Calios and the use of a Gen 8 reference design, showing how Noctua’s approach differs from traditional AIO coolers. The commentary is supported by on‑screen text and visuals that illustrate the flow paths and fan geometry, making the content accessible to both hobbyists and professionals. Overall, the video delivers a comprehensive review of Noctua’s latest cooling technology, with a focus on performance, design innovation, and market readiness. The pacing is steady, the visuals are clear, and the technical depth is appropriate for a tech‑savvy audience.
Viewers praise the video for its clear explanation of the thermosiphon concept and the detailed walk‑through of the fan and acoustic blocker. Many comments highlight the usefulness of the on‑screen text and the visual aids that help understand the flow dynamics. Some viewers note the strong partnership with Calios and the potential for future market release. Overall, the feedback is positive, with high likes and a few constructive suggestions for more screenshots of the liquid bubbling.
Topics · review · pc · tech · linus · performance · cpu · overview · build
Questions answered
- What is the main advantage of Noctua’s thermosiphon design?
- It circulates coolant without a pump, using boiling coolant and physics to achieve efficient heat transfer.
- How does the A12X25 Gen 2 fan improve performance?
- Its torque motor and progressive bend impeller provide higher resistance and lower noise, giving better temperatures and deceleration.
- What role does Calios play in the design?
- Calios helped design the passive cooling case and the acoustic blocker, ensuring a smooth flow and reduced vibration.
- When will the product be available?
- Noctua plans to launch the cooler in 2026 with a 6‑year warranty.
- What is the expected price?
- The Gen 2 fan is priced at $34.90, similar to the Gen 1.