{
  "id": 9144163,
  "title": "The Future Is Fanless: 100% Heat Capture for Liquid Cooled AI Servers",
  "url": "https://urgent.news/2026/09/22/the-future-is-fanless-100-heat-capture-for-liquid-cooled-ai-servers",
  "topic": "tech",
  "section": "Tech",
  "published": "2026-09-22T12:22:50.000Z",
  "source": {
    "name": "IEEE Spectrum",
    "slug": "ieee-spectrum",
    "url": "https://spectrum.ieee.org/fanless-liquid-cooled-ai-servers-coolit"
  },
  "original_language": "en",
  "account": "In a world where AI servers are becoming increasingly powerful, liquid cooling is the key to keeping them running smoothly. The old hybrid approach of mixing liquid and air is no longer effective once a server rack reaches 250 kW of power. At this point, air cooling becomes a costly and complex burden that few operators are willing to bear.\n\nThat's where near-total liquid heat capture comes in. By allowing liquid to take on virtually all the heat generated by the server, air cooling can be reduced to a mere 1% of the load. This leaves the server free to run fanless, which not only reduces noise and increases efficiency, but also extends its lifespan.\n\nCoolIT, a leader in liquid cooling technology, has been building these modular loops for over six generations of fanless designs. These blocks are proven and reliable, making it easy for operators to install and maintain their servers. By uniting the cooling solutions for each component, CoolIT is able to achieve full heat capture and distribute coolant effectively throughout the server.\n\nThe trend towards higher power densities is only going to continue, with rack power expected to reach 1 MW in the near future. At this point, near-total liquid heat capture will become the standard design for flagship rack-scale products through 2028. CoolIT is at the forefront of this revolution, delivering complete heat capture solutions that keep AI servers running at peak performance.",
  "summary": "This article is brought to you by CoolIT . Beyond 250 kW a server rack can no longer be cooled by a hybrid approach of liquid and air. At this density a 70/30 liquid-air split leaves 75 kW of air load. The air cooling system needed to move it brings cost and complexity few operators will accept. The answer is near-total heat capture. Liquid takes effectively all the heat, air falls below 1…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}