In some cases, whining sounds of this nature are related to the tied to screen brightness and caused by defective inverter boards. This explains why some users experience alleviation of the noise when toggling display brightness or turning off one processor using Apple's CHUD tools (which are included among the Developer Tools that ship with the MacBook Pro). When a certain amount of power is being drawn, the problem manifests. In most cases, the problem has to do with power draw. There appear to be various causes for this issue, and various associated workarounds. However, this physical phenomenon cannot be completely removed and nor for all other notebook manufacturers.Many MacBook Pros emit one or more version of a distinct and irritating high-pitched noise MSI has made every effort to mitigate the noise level in all notebook products. Depends on different scenarios, it can be much easier to hear the coil whine when intensive CPU or GPU tasks are in use such as gaming or video editing.ĭepending on different people and environmental noise, it’s easier to hear the high-pitch noise in a quiet environment, and for the people who can hear higher frequency sound or are more sensitive with high frequency.
When coil whine occurs, the noise of vibration is usually emitted by high-powered components, especially from the CPU or GPU. The coils are contained in GPU, PSU, hard drives, or motherboard. In certain situations, if the electronic components vibrate at an audible frequency, people will hear the high-pitch noise, so-called "Coil Whine". When a current passes through the Electrical Inductor, the coil will vibrate at a certain frequency depending on the current flow. It is normal behavior with a working notebook and it’s not related to a hardware defect. Coil Whine comes from the vibration of the electronic component when a current passes through. This kind of high-pitched noise is a physical phenomenon that usually happens on electronic components and called “Coil Whine”. Sometimes a high-pitched/high-frequency noise can be heard from a notebook, and it’s not coming from the speakers nor the fans.
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