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Enermax shows pump-free AIO that handles 900W, oil-immersion case at Computex

Passive vapor-pressure loop claims 900W TDP with no pump to fail

June 3, 2026 · BetterFPS Editorial
Enermax shows pump-free AIO that handles 900W, oil-immersion case at Computex

Enermax brought a pump-free AIO liquid cooler to Computex 2026 that uses vapor pressure instead of a mechanical pump. The PFA (pump-free AIO) relies on Daikin's DAISAVE SF-49, a coolant that boils at 49°C. Heat from the CPU block vaporizes the fluid, vapor pressure pushes it to the radiator, it condenses, and gravity returns it to the block. The 360mm version claims to handle up to 900W TDP, per Enermax.

That's a big claim. For context, Intel's i9-14900KS hits ~400W under load. 900W TDP puts this in workstation and extreme overclocking territory, where pump failure is a real risk. A passive loop eliminates that failure point entirely.

Enermax also showed an oil-immersion case using the same Daikin fluid and new PSU models, but those are side notes. The pump-free AIO is the story. If it ships and holds that 900W claim, it's the first passive solution that can match high-end AIOs without the noise or the risk of pump death after two years.

Check if your current cooler is holding you back at BetterFPS.

Source: TechPowerUp