Noise levels - Sound pressure readings

Acoustic Performance

With a certified dBA meter, we measure how many DBAs originate from the PC. It's slightly subjective as there is always noise in the background, from the streets, from the HD, PSU fan, etc so this is by a mile or two, not a precise measurement. You could only achieve objective measurement in a sound test chamber. Take this measurement as an indication, not a precise measurement, please.

The human hearing system has different sensitivities at different frequencies. This means that the perception of noise is not at all equal at every frequency. Noise with significant measured levels (in dB) at high or low frequencies will not be as annoying as it would be when its energy is concentrated in the middle frequencies. In other words, the measured noise levels in dB will not reflect the actual human perception of the loudness of the noise. That's why we measure the dBA level. A specific circuit is added to the sound level meter to correct its reading in regard to this concept. This reading is the noise level in dBA. The letter A is added to indicate the correction that was made in the measurement. Frequencies below 1kHz and above 6kHz are attenuated, whereas frequencies between 1kHz and 6kHz are amplified by the A weighting.

When the processor is idle, the fans operate at a minimal noise level, barely audible to the human ear. However, when the processor is put under 100% load, the noise level increases. This is due to the balanced mode settings of the LCS cooler. This raises the question: how does the noise level change when the processor is overclocked? The dBa levels return to normal only when the CPU is supplied with 1.30V and overclocked on all its P cores towards 5300 MHz. It is worth noting that the user can adjust the RPM behaviour of the fans to their preferences, but this may result in a decrease in performance.