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Essential Factors to Consider When Choosing a Power Supply for a PC

Gina WellsSeptember 24, 2021
Essential Factors to Consider When Choosing a Power Supply for a PC

One of the most crucial components of your Computer is your power supply (PSU). Unfortunately, it is also the most overlooked component. Users often skimp on quality or settle for something that is below the required wattage compromising reliability. Many think going more is better and go overboard with the number of watts of the PSU. This can compromise performance and efficiency.

So, what factors are important to consider when choosing a PSU? The experts have shared some essentials tips and advice on what you look for in a power supply;

Choosing The Right Power Supply For Your PC

While selecting a power supply for your PC, consider the factors like form factor, efficiency, amperage, protection, and the cables accompanied with the power supply system. The right power to the PC brings an impact on the efficiency and the life span of the PC. It is highly advisable to spend more time while choosing the power supply for your PC.

Harriet Chan, Co-Founder of Coco-Finder

Most people tend to focus on the components that have the most curb appeal when it comes to choosing a PC, neglecting the less popular components. Having the proper power supply is very important to have a good overall build.  

1. Number of Watts Required

The most important factor to consider when choosing a power supply is the number of watts that it will require. While a unit must provide enough power for all of its components, going overboard can make a system less efficient when performing non-intensive tasks. 

2. Efficiency Rating

A power supply's efficiency rating is important to note because higher-efficient units tend to use less power and generate less heat. 

3. Modular Power Supply

Getting a modular power supply allows you to easily and neatly organize the power cords and connections in your case. 

4. Quality

A good power supply is something that will last for a long time, and if you skimp on quality, you could end up with issues that are much more costly later.

Yana Trihub, Chief Executive Officer at KeyUA

Why is it so Important to Get the Right Power Supply?

A PSU will literally make or break your build. If your computer can't get enough power, it will suffer catastrophic failure. If it's getting too much power, you could fry delicate equipment like your motherboard. 

1. Calculating the Wattage

First, you need to ensure you're getting the right amount of wattage. Newegg has a calculator that allows you to input other specifics of things like your RAM and video card.  This will give you a good idea of what you need. 

2. Room For Upgrades

You should keep in mind, however, that you may want to upgrade your parts down the line. If you plan to do this, leave some room with a larger power supply. If you know what you might like to upgrade to, you can input that in the calculator to get a rough idea of what you'll need.

Rex Freiberger, CEO Gadget Review

3. Compatibility

Of course, the bare minimum that you should do is figure out what power rating you need to make sure everything is able to run in your PC setup. Don’t make the mistake of buying a low-power rating that is not compatible with your components. Since power supplies are generally affordable but very important parts of your build, you should always invest in the best one that you can afford. 

Don’t ever try to scrimp your budget for a power supply - it isn’t worth it! Try to shop only from the most reputable brands because this is a part that could join you as you upgrade your system through the years.

Stefan Ateljevic, Founder of PlayToday.co

Whether you are hunting to upgrade your current power supply or find a new one for your computer, there are some things to consider.

4. The Make and Model of Your PC

The first thing you'll want to do is gather information about what make and model of computer you have.

  1. Determine Compatibility of the Power Supply

The next step is to determine which power supply is compatible with your machine. As far as the basics go, ATX and Micro ATX power supplies are the most commonly used in most desktop computers.

 5. Maximum Power Output

Next, you'll want to determine the power supply unit's maximum power output. There are two ways to get this information. First, you can check the specifications on the manufacturer's website or, second, you can check it on the label on the power supply itself.

6. Cables

If the computer system is compatible, you'll also need to determine what cables are included with your system. This can be determined from the label of the power supply unit.

So if your system is 100% compatible with a specific brand of power supply, always look for one that is compatible. Lynda Fairly, Co-Founder Numlooker

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