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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
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Stock Fan Noise Level
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Fan
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SPL @1m (dBA)
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7V
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9V
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12V
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Rear
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14
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17~18
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23
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Front
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15
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18
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22
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Combined
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16~17
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21
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25~26
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Measuring mic positioned 1m at diagonal angle left/front
of case.
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The stock fans have similar acoustics to those found on the Silencio 550, though they appear to be higher speed models that produce more turbulent noise. The bearings generate a constant, low frequency clicking noise that is audible, but only at close proximity. Otherwise the fans sounded fairly good with a mostly smooth character both at low and high speed. The overall noise level produced by fans was low as well, with the two combining to measure 16~17 dBA@1m at 7V and 25~26 dBA@1m at full speed
At 9V, the front and rear fans generated a noise level of 21 dBA@1m with a generally smooth, broadband character.
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