Why Does Laptop Make Noise When Charging? – Easy Fix

Laptops have become an important part of our daily lives in a world of new technology. 

We use these portable devices for work, play, and communication. But have you ever heard a strange sound from your laptop while it was plugged in and charging? It can be confusing, making you wonder about the reason and possible risks. 

There’s no need to worry, though, because this article will explain why your laptop is making noise when charging and how to fix the problem quickly. So, let’s dive in and look at some of the most common causes of laptop charging noises and how to stop them.

Why Does Laptop Make Noise When Charging?

Electrical Noise 

When a laptop is charging, electric currents move through the charger, the power adapter, and the charging circuits inside the laptop. Electric noise is the name for the high-pitched or humming sound that these electric currents can make.

When the laptop is connected to a power source with bad grounding or when using a low-quality charger, the noise can be louder. Also, a fast flow of charges in old components causes these noises.

• How To Fix It?

You must ground your laptop while charging to fix these electrical noises. Some of the laptops have steel bodies, which causes this issue. So, grounding the laptop while charging may resolve this issue. 

Coil Whine

Coil whine is another common source of noise while a laptop is charging. A coil whine happens when digital parts, such as inductors or transformers, move at high frequencies when different electrical currents pass through them. 

This movement can cause a high-pitched sound, often called a whine or buzzing sound. The coil whine is more likely to be heard when the laptop is stressed, or the charging parts work at their best.

• How To Fix It?

Laptop coil whining is mainly caused by electromagnetic vibrations in the electrical components. So, keep all electromagnetic devices away from your laptop while charging like speakers.

Customers have noted that changing laptop electricity settings reduced coil whining. Change CPU power states or performance profiles in your computer’s power control settings. See if any settings reduce coil whining.

Fans Make Noise

Laptops usually have cooling fans to keep them from getting too hot. The laptop may also get warmer during the charging process, making the fan spin faster. The fans can make noise as they speed up to eliminate heat. The noise can be louder or quieter depending on how the laptop is made, how much work it does, and how hot its parts are.

• How To Fix It?

It is essential to ensure your laptop is placed on a sturdy, level surface. Uneven surfaces can inhibit ventilation and force fans to work harder than necessary. In addition, ensure that the computer’s vents are not obstructed by objects such as documents, fabrics, or anything else that could impede airflow.

Do not neglect to clean the vents and fans. Over time, dust and particulates can accumulate in these areas, reducing the cooling system’s efficiency. To calm them, turn off your computer and disconnect it from any power source. 

Carefully remove the grime from the vents and fan blades using compressed air or a small vacuum cleaner with a brush attachment. Be gentle to avoid causing any harm.

Noise from the Hard Drive 

Older laptops with mechanical hard drives can make noise while they are charging. Hard drives have disks that spin and read/write heads that move. The hard drive may become more active when the laptop charges because of idle processes, indexing, or synchronizing files. So, the study/write heads and moving disks can make sounds like clicking or humming.

• How To Fix It?

It is recommended that you back up your data as soon as possible and seek the assistance of an experienced technician if the noise is unusual or if it is seen in combination with other indications and symptoms, such as slow performance or frequent crashes.

If the sound has more of a mechanical character, the origin of the noise may be worn-out or broken elements inside the tough force, and you have to replace your hard drive then. 

Charging Port and Cord 

The noise can sometimes come from the charging port or the connection between the cord and the phone. A loose connection between the charging cable and the laptop’s charge port can cause electrical contact to happen only sometimes, which can make crackling or hissing sounds. 

• How To Fix It?

In this case, the noise could be fixed by ensuring the charging cord is securely connected to the PC. Ensure the charging cable is adequately connected to the computer and the power source. Ensure there are no loose connections or frayed wires. If you notice any damage to the cord, you should replace it with a new one.

Examine the charging connector for your computer. Occasionally, debris or dirt can accumulate in the port, preventing a correct connection.

Component Wear or Malfunction

In some cases, the noise at some point during charging could be a sign that there is a problem with the hardware. For example, a bad battery, a broken power supply, or a broken fan should make strange noises.

If the noise keeps happening and seems strange or is accompanied by other problems, like burning, it’s best to have a professional check out and fix the laptop.

• How To Fix It?

The best thing to do when your hardware is old or worn out is to replace it. There is no other chance to repair any hardware in this case. You must have to replace it.

Is It Normal For A Laptop To Make Electric Noise?

Laptops are designed to operate silently, with their internal components producing minimal noise, which is why it is not normal for a laptop to make noise. Electric noise and humming, crackling, or whining noises from your laptop could indicate a problem with the electrical components.

These components include fans, coils, and hard drives. Fans make noises if it is accumulated with dust or has a bad connection. Coil whining noise is due to magnetic interference like nearby speakers or devices with EMI (electromagnetic interference). You must clean your laptop fans and distance them from the EMI devices to solve the issue.

Is Bad Charger Causes Laptop Noise?

A bad charger can cause laptop noise, but it’s not always the best place to start when figuring out what’s wrong. Humming, popping, or hissing can come from a laptop in many ways. These sounds could be very annoying and be a sign of a bigger problem. 

Even if the charger isn’t the main cause of the noise, if it’s broken, it could cause electrical disturbances that affect the laptop’s performance and make noises.

If the charger is broken, it can cause electrical confusion or not send enough power to the laptop. It can cause changes in the laptop’s power source, making its parts work in strange ways. 

When these parts, like the processor, hard drive, and fans, don’t get a stable power source, they make noises as they try to work well. For example, if the cooling fans aren’t getting enough power, they might spin at different speeds and make a humming or whirring sound.

Also, a charger that wasn’t made well or is broken can give off electromagnetic interference (EMI) or radio frequency interference (RFI). EMI and RFI can mess with the laptop’s internal electronics, causing noise from its audio output or through its internal audio system. 

When the laptop is plugged into the charger or when the charger itself is broken, these noises may be especially loud.

It is important to remember that laptop noise can also be caused by things other than the charger. For example, a broken or overheated part, like a hard power or fan, can make noise on its own without the charger. In the same way, software problems, driver conflicts, or broken audio gear can also cause a laptop to make noise.

To find out if the noise is coming from the charger, it’s best to try a different charger that works with the laptop. If the noise goes away when a one-of-a-kind charger is used, it shows that the real charger could also be the culprit. 

In this case, it’s best to replace the charger with a good one that the manufacturer recommends. It will ensure the power source is strong and reduce the chance of electrical interference.

Conclusion

Several things cause laptop charging noise. Poor grounding or a low-quality charger can cause high-pitched electrical noise. Digital parts moving at high frequencies due to various electrical currents generate coil whining. When the laptop or charging components are stressed, this can make a whining or buzzing sound.

Laptop cooling fans make noise when charging. The fans may spin faster to cool the laptop during charging, making noise. While charging, older laptops with mechanical hard drives may click or hum as the disks spin and the read/write heads move. Loose charging port-cord connections might also cause crackling or hissing.

A defective charger may generate laptop noise, but not always. Other hardware or software faults might cause electrical disturbances that hinder laptop performance and make noise. A bad battery, power source, or fan may make unusual noises during charging.

Try a laptop-compatible charger to determine if the noise is from the charger. If a replacement charger eliminates the noise, the original charger may be at fault. 

To maintain stability and reduce electrical interference, replace the charger with a manufacturer-recommended one. If the loudness continues or there is burning, seek professional assistance. A hardware issue may need expert examination and repair to prevent laptop damage.