Tom's Hardware got a chance to visit Noctua's booth at Computex 2026, and we went deep on two key products for the company. The first is the NL-LC1 all-in-one liquid cooler, which we've already covered separately. The second regarded the company's ongoing efforts to develop a passively circulated thermosiphon liquid cooling solution.
A thermosiphon CPU heatsink works on a simple principle: a working fluid in a closed loop is exposed to a heat source, changes phase to a gaseous state, enters a condenser, sheds its heat by changing back into a liquid phase, and then naturally falls back toward the low point in the loop.
