Frequency Plots
10% Fan Speed
25% Fan Speed
50% Fan Speed
75% Fan Speed
100% Fan Speed
At 10% speed, there are some frequency spikes at 2.5 KHz, 2 KHz, and 200 Hz. From 25% to 75%, the dominant frequency is 630 Hz. Lastly, the noisiest frequency at full speed is the 800 Hz one.
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.
10% Fan Speed
25% Fan Speed
50% Fan Speed
75% Fan Speed
100% Fan Speed
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Great for when half your fans are oriented in a way where the display isn’t visible.
Amazing work! Thank you for this.
🙂