jeudi 29 mai 2014

Does a Bigger PSU Mean a Quieter PSU (AXi edition)

In our graphs, we often show higher wattage power supplies' fans turning on and spinning up to higher RPM's at higher loads than lower wattage units. Of course, an armchair engineer can come along and say "45W of heat is 45W of heat and you're going to need the same amount of airflow to evacuate that heat, therefore the fan will always spin at the same RPM at a given load, regardless of the size of the power supply." Sure, the basic math makes sense, but it's just not true.



In this blog, we take one build, and power it with two different AXi PSUs: The AX760i and the AX1200i. Using Link, we measure the temperature of the CPU, PSU and the RPM of the fan. The results may surprise a lot of you.



http://ift.tt/1trJ0yx



The AX760i and AX1200i are quite different from each other. So in a future installment of this experiment, we'll have a look at how two different RM Series power supplies vary under the same load.




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