PSU Overheating – Symptoms, How To Fix It? (Solved)

Power supply unit (PSU) overheating is a common problem that can occur in desktop computers. An increase in internal temperature occurs when the power supply is unable to dissipate heat effectively. In addition to dust buildup, underpowered power supplies, poor airflow configurations, or simply due to aging, there are many reasons why a PSU can overheat.

PSU Overheating

Every component that gets powered by the power supply relies on a stable and reliable source of power to function correctly. A poor-quality power supply is crucial to the success of any computer. Other components can malfunction or overheat if the PSU is experiencing problems, such as overheating. The temperature inside the computer can also increase if the PSU is overheating, depending on the airflow configuration of the PC.

Consequently, PSU overheating must be addressed and prevented for computer components to function properly and last a long time.

Causes of PSU overheating

The build-up of dust

Overheating of a PSU is often caused by dust buildup inside or on it. In addition to preventing proper airflow and heat dissipation, dust can accumulate over time and block the vents and cooling fins of the PSU. As a result, the internal temperature of the PSU increases, resulting in overheating.

Underpowered PSU

An underpowered power supply can also cause PSU overheating. If the power supply cannot provide enough power to the components, it can increase internal temperature since it works harder to meet the demands. Selecting a PSU with enough power is crucial for meeting the system’s needs.’An underpowered power supply can also cause PSU overheating. If the power supply cannot provide enough power to the components, it can increase internal temperature since it works harder to meet the demands. Selecting a PSU with enough power is crucial for meeting the system’s needs.

Poor PC airflow configuration

When there is poor airflow inside the case, the heat generated by the PSU and other components may not be properly dissipated, causing the PSU to overheat.

Age of PSU

Overheating can occur if the power supply is not properly maintained and cleaned regularly. An aged power supply may need to be replaced to prevent overheating. Symptoms of PSU overheating:

Freezing

It’s common for computers to freeze when the PSU overheats, causing them to malfunction as the components don’t receive a stable supply of power.

Random restarts

Random restarts

The PSU failing to provide a consistent power supply can also cause the computer to shut down and restart unexpectedly because of overheating.

Display glitches

Display glitches

It is also possible for display glitches, such as flickering or distorted graphics, to be caused by an overheated power supply, which in turn can lead to display glitches.

Random shutdowns

A random shutdown can also occur if the power supply cannot provide a stable power supply to the components. If this happens, the computer may shut down unexpectedly to prevent damage to the components.

Micro stuttering

When the power supply is unstable, micro stuttering can also occur. This can happen when the components malfunction and the screen appear to stutter.

Difficulty starting up after restarting

When the power supply fails to start after a restart, the computer may not be able to boot up properly. This can be caused by overheating and poor power supply reliability.

Fixing PSU Overheating – Solutions!

Clean the inside of the computer

Cleaning the inside of the computer is one of the first steps to resolving PSU overheating. Dust and debris can accumulate over time, blocking the vents and cooling fins of the PSU, preventing proper airflow and heat dissipation. Unplug the computer and disconnect all of the power cables, then remove the case of the computer, then clean the inside with a small brush and compressed air. When cleaning the inside of a computer, it is important to use caution and proper safety measures, such as wearing eye and face protection.

Clean The PSU

Clean The PSU

Cleaning the PSU itself is the next step to resolving to overheat. If dust and debris accumulate within the PSU, it can affect its cooling capabilities. If dust and debris accumulate, you need to use compressed air to blow them out carefully. When cleaning the PSU, it is important to exercise caution and proper safety precautions, such as wearing eye protection and a face covering. If you are not a qualified technician, you should avoid opening the PSU.

Check if PSU is underpowered for the system

PSU overheating can also be caused by an underpowered unit. If the power supply can’t supply enough power to the components, it can increase the internal temperature as the PSU works harder to meet the demands. Check the system’s requirements and make sure the PSU matches them. For the PSU to stay cool and work with less strain, it is also recommended to choose one that has a little extra power.

Check the airflow configuration inside the computer case

PSU internal temperatures can also be affected by the design and layout of the computer case as well as the placement of components. In the event of poor airflow, the heat generated by the PSU and other components may not be dissipated properly, resulting in overheating. To resolve this issue, check the airflow configuration within the computer case and make sure there is enough airflow.

Replace aged PSU

To prevent overheating, the PSU needs to be replaced if it is aged and experiencing overheating issues. It may become less efficient at dissipating heat as it ages. To ensure that the PSU is reliable and suitable for the system, it is important to choose one that is suitable for the system.

People Also Ask (FAQs)

Is it normal for a PSU to get really hot?

No, it is not normal for a PSU to get really hot. Overheating can be a sign of a problem with the PSU or other components, such as a build-up of dust or an underpowered unit.

What causes PSU overheating?

PSU overheating can be caused by a build-up of dust, an underpowered PSU, poor PC airflow configuration, or the age of the PSU.

What are the signs of PSU failure?

Signs of PSU failure can include sudden shutdowns, random restarts, display glitches, micro stuttering, and difficulty starting up after a restart.

How do I cool down my power supply?

To cool down a power supply, you can clean the inside of the computer and the PSU, ensure that the PSU is adequately powered for the system, and check the airflow configuration inside the computer case. You can also consider replacing an aged PSU.

Can you water-cool a PSU?

No, it is not recommended to water-cool a PSU. Water cooling is designed for use with specific components, such as the CPU or GPU, and is not suitable for use with a PSU.

Should PSU fans always be on?

Yes, the PSU fan should always be on to help dissipate heat and keep the unit cool. If the fan is not working properly, it can lead to overheating and cause problems with the PSU.

Is it a PSU fan intake or exhaust?

A PSU fan can be either an intake or exhaust fan, depending on the design of the unit. Some PSUs have a fan that draws in cool air from outside the case to help dissipate heat, while others have a fan that expels hot air out of the case.

Does more RAM reduce CPU temperature?

More RAM may help reduce CPU temperature in some cases, as it can help offload tasks from the CPU and allow it to run at a lower speed and generate less heat. However, the impact of RAM on CPU temperature will depend on the specific system and workload.

Conclusion

Ultimately, PSU overheating can be caused by a buildup of dust, an underpowered power supply, poor airflow configuration, or the age of the power supply. There can be a variety of symptoms associated with a PSU overheating, including freezing, random restarts, display glitches, random shutdowns, micro stuttering, and difficulty starting up after restarting.

Cleaning the interior of the computer and the PSU, ensuring the PSU is adequately powered for the system, checking the airflow configuration inside the computer case, and replacing an outdated PSU are all ways to resolve PSU overheating. The proper functioning and longevity of your computer components can be ensured by addressing and preventing PSU overheating. Taking proper precautions and following proper procedures when cleaning and handling the PSU will prevent further problems.

lisa shroff
About Lisa Shroff

Lisa Shroff is a graphics card expert with 6 years of experience in the computer hardware industry. She loves to keep up with the latest industry trends and her passion for PCs led her to start her blog, GPUInsiders.com. Lisa has managed to overclock projects for some of the biggest names in the tech industry, and she frequently attends conferences to showcase her expertise. She’s an outspoken advocate for advanced technologies in computer gaming and has been featured in many publications. In her spare time, Lisa enjoys playing video games and traveling to explore new cities.

Leave a Comment