CoolIT builds modular liquid loops for servers with near-total heat removal. According to the IEEE Spectrum AI summary, when rack load exceeds 250, a hybrid liquid and air cooling scheme becomes insufficient: a configuration with fractions of 70% liquid and 30% air leaves 75 to the air.
In the described configuration, the liquid removes virtually all heat, and the share of air load drops below 1%. This allows servers to operate without fans. CoolIT states that such loops are built from modular cold plate blocks used in six generations of fanless designs.
The practical implication of this approach is reducing the role of air systems as power density increases. However, the presented information is published in material prepared with CoolIT's involvement and is based on metadata and a brief synopsis, not on a full independent study.
editorial commentary
Why it matters
If the claimed parameters are confirmed by independent testing, the next observable signal will be the publication of measurements or operational examples of racks exceeding 250 with an air load below 1%. Significant uncertainty remains due to the lack of primary data, testing methodology, and cost information.