Cooler Master Silencio 550 Quiet ATX Tower

Cases|Damping
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TESTING

System Configuration:

Measurement and Analysis Tools

System temperatures and noise levels were recorded with SpeedFan and GPU-Z at idle and on load using CPUBurn (K7 setting) and FurMark, an OpenGL benchmarking and stability testing utility.

Baseline Noise

The Silencio 550 ships with only two black 12 cm 800 RPM fans, one at the rear acting as an exhaust and one at the front acting as an intake. Both are sleeve bearing models with the model number DF1202512SEDN and a current rating of 0.10A (1.2W).


Front fan.


Stock Fan Noise Level
Fan
SPL @1m (dBA)
9V
12V
Rear (12 cm)
<11
11~12
Front (12 cm)
<11
12
Combined
<11
14
Measuring mic positioned 1m at diagonal angle left/front of case.

The stock fans are an enigma, being both too loud and too quiet at the same time. The bearings generate a constant low frequency clicking noise audible at one meter distance in a quiet room, and the fan spins too slowly to generate enough turbulence to cover it up. Inside our test system, both fans individually measured near our anechoic chamber's 10~11 dBA noise floor and together just broke 14 dBA@1m at 12V. There is no reason to run them any slower unless the components placed inside the Silencio are all passively cooled.


Our baseline noise level for the Silencio 550's was 14 dBA@1m at 12V.



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