DON’T Water Cool Your PC! - IceGiant Copper Prototype

The video centers on how IceGiant’s copper prototype Thermosiphon Elite performs against traditional air cooling and popular AIO solutions when handling Intel’s Core i9-12900K. It opens with the premise that despite marketing hype, water cooling is not always the best or simplest path to tame hot CPUs, and introduces the thermosiphon concept as a moving-fluid, gravity-driven cooling loop with no pumps. The host recaps the old aluminum prototype and explains upgrades made in the copper version, emphasizing better heat conduction through copper, redesigned evaporator fins for more surface area, and the addition of centered copper pieces that wick condensed liquid to improve return flow. He also discusses mounting orientation requirements and practical tradeoffs such as potential leaks, weight, and RAM clearance, framing the copper unit as a serious, though not universally suitable, option for extreme cooling needs. The testing section compares the copper prototype against the Noctua NH-D15 and an EK AIO Elite 360, under both default and performance power settings, using a high-end test bench and a blender-style heat load. In performance-oriented runs the copper unit delivers lower peak core temperatures and mitigates throttling better than the other coolers, though it is not free from thermal limits when the CPU power target is pushed further. The host also highlights insights from Splave about motherboard tuning and power delivery, noting that performance mode alone is a blunt tool and that voltage and load-line calibration can unlock additional headroom. The video concludes with reflections on market viability, noting that copper adds cost and potential RAM clearance challenges, and speculating on price pressure and production tolerances, while acknowledging that this prototype demonstrates a compelling pathway toward cooler, higher-wattage CPUs without relying on pumps alone.

Topics · Technology · Computing hardware · Cooling technology