Why Hotter Chips Don't Always Mean Compressor-Free Cooling

Rising chip temperatures are reshaping data center cooling, with many assuming hotter chips mean compressor-free, lower-energy heat rejection. However, climate, water availability, and facility design complicate this, leaving leaders to navigate cooling options without clear guidance.

This white paper offers a framework for evaluating heat rejection as chip temperatures reach 40-50°C. It maps operational zones based on server temperature, climate, and water use to determine when compressor-less, compressor-based, or hybrid solutions work. Key insights include:

- Why compressors remain necessary in most climates  
- Trade-offs of water-based systems  
- Air-cooling viability as water temperatures rise