What is Coil Whine or electrical noise

Computing is part of our daily lives, and more and more people have a deep understanding of these components. Occasionally, we may encounter certain "problems" that we can't identify. One of these problems is coil whine, or electrical noise , which commonly occurs in graphics cards and power supplies.

What is Coil Whine or electrical noise

It is a type of electrical noise that occurs in the computer and usually comes from the graphics card , although it can appear in other components such as the power supply or the motherboard.

We can define it as electrical noise produced when an electric current passes through a coil, such as in transformers and inductors . In both cases, opposing electromagnetic fields are generated . These fields can cause the coil to vibrate , resulting in a slight whistling sound. It can also occur in capacitors, although it is rare.

This whistling sound is normally outside the range of human hearing. When it becomes audible, it is quite annoying , and correcting it can be complex. This phenomenon often occurs when there is high electrical consumption and, therefore, a heavy workload.

Why Coil White or Electrical Noise Occurs

This phenomenon occurs when a large current passes through a wound circuit . It is a natural phenomenon and is normally outside the audible frequency range.

When the system is under a heavy workload, energy consumption increases. As the current increases, electromagnetic fields also increase significantly. This can generate invisible vibrations in the conductors , producing noise. It's worth noting that the components are already designed to account for this factor.

It is quite common to see a kind of rubber surround around coils and capacitors. This simply dampens electrical noise. Some coils even have silicone "globs" to prevent coil whine.

👉 Guide to performing maintenance on a graphics card 👈

I have to process the guarantee if I hear it

First of all, you should know that coil whitening is completely normal , to a certain extent. If it's an older component, it can be normal due to heavy use. If it's very new (less than 12-16 months old), it could be a problem or defect in the component.

If this noise appears a few days or weeks after installation , it could indicate a component defect. If there's no excessive workload and the noise occurs frequently, it could also be a sign of a defect. This electrical noise is also not normal if you're 2-3 meters away from the chassis.

Unfortunately there is no simple solution to correct Coil Whine.