Optimal Air Teperature

A 2009 study by American Power Conversion takes an in depth look at server room temperatures and how it impacts overall power consumption. The study takes into account three distinct server types ranging from the elaborate to the small boxed server in use at small businesses.

While semiconductor leakage is attributed for some increase in power draw by servers, increased fan speed/operation is the largest factor, in one case contributing an 80 watt increase in power consumption between 62 and 95 (F) degrees.

To arrive at the optimal server room temperature the study also considered the cost of the cooling.

The study concluded that an air temperature between 76  and 81 degrees (F) provided the best overall energy savings, a balance on how cool to keep the room and when the server starts to pull extra energy.

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