Why is there a faint electrical noise around the CPU area of the Xiaomi Book?

The faint electrical noise near the CPU area of the Xiaomi Book is caused by the inherent characteristics of ceramic capacitors. When powered, ceramic capacitors can emit a subtle sound, a phenomenon commonly referred to as coil whine or capacitor noise. This is a behavior associated with ceramic capacitors, which are widely used in electronic devices.
The intensity and occurrence of this sound depend on factors like the power load, specific hardware design, and environmental conditions.
This noise poses no impact on the device’s functionality or your experience during normal operation. It is purely a byproduct of the capacitor’s design and material properties. Furthermore, it does not present any safety hazards, ensuring the product remains reliable and safe for everyday use. Please feel free to use it.