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Before we discuss why thermal resistance is important in data center cooling, we probably need to explain what it is. Thermal resistance is defined as the CPU temperature rise over the incoming water or air temperature, divided by the chip power. This is reported as oC/watt and is a measure of a cooling system’s ability…

Not long ago, rack power requirements were less than 20 kW. Today it’s not uncommon to have racks in the 30 kW to 40 kW range. We even have 10 kW servers, like the DGX-H100! Faster and more powerful CPUs and GPUs are pushing the limits of air-cooled data centers and will soon exceed those…