Fan curve and operating noise (“loudness”)
Now we come to what automatically arises when the waste heat is removed: the universally hated fan noise. The measurements in the measurement chamber are, as always, a bit tricky, because you can’t measure anything through the closed side window. That’s why I’ll manually adjust the fans to the values I measured in the closed case during gaming and torture later and leave the setup open. The almost 970 rpm in the gaming loop are almost inaudible and then in the stress test it’s up to 1020 rpm, which is also acceptable as long as the sound characteristics are also okay. You’ll read whether this is the case in a moment.
But what does the measurement for the operating noise show? You can see nicely in the frequency analysis, how the sound is divided up. With 31.1 dB(A) in the gaming loop and plenty of 200 watts in Cyberpunk 2077, it’s more than okay, even if we see a peak in the area around 10 KHz, which can clearly be attributed to the voltage converters. However, you can hardly hear that, if at all. What you can easily hear are slight vibrations and a somewhat growly basic noise from the motor. However, you can only hear that because the rest is so quiet and you are very close to it with your ear.
It is a bit louder in the stress test, but even that is far from anything that could even begin to steal your mind, but it is pleasantly bearable. So, when the side panel is closed, the noise is no longer or only barely perceptible, which can really please you. If, then please like this.
Audio samples as a sound example
The following audio samples come from the measurement microphone and were deliberately not normalized. Because then quiet would become loud, which it wasn’t. You can also hear the tiny voltage converter noise in gaming, provided that the sound converters are good, but it’s not annoying.
Gaming noise without OC
Torture Test
- 1 - Introduction, technical data and technology
- 2 - Test System and the igor'sLAB MIFCOM-PC
- 3 - Teardown: PCB and components, cooler
- 4 - Gaming performance
- 5 - Details: Power consumption and load balancing
- 6 - Transients and PSU recommendation
- 7 - Temperatures, clock rates and infrared analysis
- 8 - Fan curves, noise and audio samples
- 9 - Summary and conclusion
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