Frequency Plots
30% Fan Speed
50% Fan Speed
75% Fan Speed
The highest frequency is at 400 Hz.
100% Fan Speed
The noisiest frequency is 500 Hz at full speed.
Signal Recordings
I have recorded the signals shown above, but please keep in mind that I’ve enabled Automatic Gain Control (AGC) to do so to make it easier for you to reproduce them. The provided recordings are only offered for aural identification purposes.
30% Fan Speed
50% Fan Speed
75% Fan Speed
100% Fan Speed
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