Last Updated on March 26, 2022 by Tech Queries Team
The Full Form of PSU is Power Supply Unit, which works as power equipment in computers. PSU is one of the 10 Hardware Components of a Computer. In this article, you will learn What is PSU in Computer and why it is more important than you think. SMPS (Switched Mode Power Supply) is a type of PSU. So, when people are discussing about SMPS, they are basically talking about PSU.
Table of Contents
What is PSU in Computer? and how it works.
There are several components in the computer like Motherboard, CPU, GPU, ram, etc., that require power/electricity to work. However, these components require DC (Direct Current). They do not work on AC (Alternating Current) that runs in our home. Therefore, we use a PSU (Power Supply Unit) to convert the AC power to DC power.
Check out this article to understand the difference between AC and DC power.
Why is PSU more important than you think?
It is essential to choose the best power supply for your PC. While a compatible power supply can boost your PC’s performance, a wrong power supply can damage other parts. Therefore, it is important to choose a suitable power supply according to the components in your PC.
Why you should not buy cheap power supply units?
Most Power Supply Units have voltage mentioned on them. It is not the voltage the PSU consumes, but it’s the voltage the PSU converts the AC power into DC. But, users usually buy a low price unbranded Power Supply Unit that is not accurate to the voltage mentioned on it. Therefore, the DC power supplied to the components may fluctuate and damage them.
Note that the Guarantee is not covered on the components that are physically damaged or burnt. Therefore, if any of your components are destroyed because of a faulty power supply, you cannot recover them under warranty.
There have been many incidents where the hard drive was damaged due to inadequate power supply. In such cases, it not only damages the physical component of your PC. It also means that the data in the Storage Device is gone forever. Hence, the PSU is more important than any other component of your computer.
If you have a faulty Power Unit (PSU), you will face issues like
- Unexpected restarting of the computer when the voltage fluctuates
- Automatically shutting down
- System Starts & Shuts down immediately
When every component of your computer does not get a sufficient power supply, they stop working. That is why your PC restarts.
Therefore, you need to get a PSU that is suitable for your components.
Conclusion:
Power Supply is the component, which we ignore while building a PC. But, Power Supply is an important component that provides proper electricity to all other components.
No matter how powerful and expensive your processor or motherboard is, it works properly only when it gets an adequate power supply. Therefore, If your PC has a powerful Motherboard, CPU, Graphics Card, RAM, RGB lights, multiple hard drives, Disc Drive, and more, you must get a powerful PSU.
I hope you understand what is PSU in Computer and why it is more important than you think.
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