One of the jobs of inductors is to smooth out power delivery and make sure that any irregularities are filtered out. The core is typically made out of iron or ferrite, which helps increase the magnetic field and inductance.ĭepending on what an inductor is used for, it can go by various names, like coil, choke, reactor or solenoid. Its job is to store electrical energy in a magnetic field. What is an inductor and what does it do?Īn inductor consists of a core with a coil of copper wire wrapped around it. Failing capacitors do not last long and are easily recognizable by bulging or a liquid coming out of the top.Ĭeramic capacitors can also make similar sounds due to the piezoelectric effect, but this is not as common in modern PCs as coil whine is. This can create a high pitched whistling sound that is similar to coil whine. One way capacitors make sound is when they go bad and expel toxic gas through the top. While capacitors can generate high frequency sounds, in the vast majority of cases, the high pitched sound in your computer is caused by inductor coils. Coil whine vs capacitor squealĬoil whine sometimes gets attributed to capacitors and gets called capacitor squeal. It does not always sound the exact same, but it is unmistakably recognizable if you are unlucky enough to be familiar with it. It can be described as a high frequency electronic buzzing, hissing or squealing or scratching noise. What does coil whine sound like?Ĭoil whine is recognizable by its high pitched sound. Most notably graphics cards (GPUs), power supplies (PSUs) and the voltage regulator modules (VRMs) on motherboards.
#SIMILAR WHISTLE PHONE FOR PC PC#
While coil whine can occur in many types of products and components, it is a particularly frequently occurring problem in modern PC components. Only when they vibrate at an audible frequency it becomes a problem.
Most of the time, coils vibrate at frequencies that lie outside our hearing range. This annoying sound is what we refer to as coil whine. When a current passes through an inductor (an electronic component), it causes its copper wire to vibrate against its core with a high, audible frequency. Simply put, coil whine is a high-pitched noise caused by vibrations in electromagnetic coils.
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