Frequency Plots
Min Fan Speed
25% Fan Speed
50% Fan Speed
75% Fan Speed
100% Fan Speed
The dominant frequencies at high speeds are 400 and 500 Hz, which belong to the mid-range frequency range.
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.
Min Fan Speed
25% Fan Speed
50% Fan Speed
75% Fan Speed
100% Fan Speed
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