What Is Coil Whine And How To Fix It

You switch on your laptop to get some work done and you hear a high pitch squeal or hissing sound. What you just heard was your coil whining.

Automatically you think what’s causing it or if something just went dead inside your laptop. It is something that can get really annoying and can slowly drive you crazy. You know? Here’s the truth about coil whine in your laptop and how to fix it.

What Is Coil Whine?

Coil whine is the high pitch noise that happens when an electric current passes through electromagnetic coils and causes it to vibrate at frequencies that can be registered by the ear. The coils act like transformers or inductors which stabilizes fluctuating electric current to a much more smooth level.

The Dell XPS 13 is pretty much known for its coil whine. Coil whine pretty much affects quite a number of laptops. But it is much more common in laptops that have Skylake (6th Generation Intel chip) and Kabylake (7th Generation Intel chip) processors. It sounds like scratches on glass, squeals or hisses.

Coil Whine In Dell XPS 13

Why Does It Make Such A High Pitched Sound

Because electromagnetic coils act as transformers or inductors their job is to stabilize the electric current passing through them.

If a certain current passes normally a high current they can cause the coils to vibrate at high frequencies which produce the high pitch sounds we call coil whine. The higher the current the louder the sound it produces and vice versa.

Honestly, coil whine happens all the time but it only becomes noticeable when the noise it produces is at a frequency our ears can register. It happens in all electrical devices all that matters is if your ears can hear it.

Is Coil Whine Bad

Coil whine is neither bad nor does it affect the performance of your laptop. The reason why such a big deal is because of the annoying high-pitch sound it makes.

As explained above, it is a technical phenomenon that happens when a large amount of current passes through the electromagnetic coils.

It is basically doing its job by stabilising the high current except that it makes a high-pitch sound. No need to worry about performance or hardware issues if your laptop has coil whine.

How To Fix Coil Whine

To be honest, coil whine in a laptop is next to impossible to fix. Because the materials are soldered on the motherboard and removing it is either going to void your warranty or damage the hardware. The best course of action is to either return the laptop for a replacement or send it back to your manufacturer to fix it.

Related: The Ultimate Laptop Buying Guide: How To Find The Best Laptop

Also, you can undervolt your laptop to reduce the amount of power it uses thereby getting rid of the noise. That’s all there is to getting rid of the high pitch sounds.

Desktop computers are different. You can actually solve the problem yourself by replacing the components or the motherboard itself. You can also get a new case for your PC hardware to dampen the noise.

Final Thoughts

Coil whine the culprit of hitch pitch noise coming from your laptop is not as bad as it seems. It doesn’t affect performance. It is just a technical phenomenon that happens when a current passes through the electromagnetic coils.

The current then causes vibration. It basically happens in every electrical hardware. If the current is large enough it can cause the coils to vibrate at audible frequencies. The audible vibrations are the high pitch sounds. If you strong you can totally ignore if not, it is best to return the laptop.

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