How To Find Out What Power Supply You Have?

When it comes to identifying what power supply you have, it’s important to understand the role it plays within your computer or other electronic device. The power supply is responsible for converting the alternating current (AC) from an outlet into direct current (DC) that can be used by various components within your device. If you’re experiencing issues with your device, it’s possible that your power supply may be the culprit. In this article, we’ll discuss how to find out what power supply you have so that you can determine if it needs to be replaced or upgraded.

Identifying your power supply can be a bit of a daunting task, especially if you’re not familiar with the terminology or components within your device. However, the process is relatively straightforward and can be done with just a few simple steps. In the following paragraphs, we’ll cover some of the most common methods for finding out what power supply you have, including examining the physical components of your device and using software tools to gather information about your system.

How to Find Out What Power Supply You Have?

In order to find out what power supply you have, you can follow these steps:

1. Look at the label on your power supply unit (PSU): Most PSUs have a label with information about the output wattage, model number, and other specifications. The label can usually be found on the side or bottom of the unit.

2. Check your computer manual: If you have the manual for your computer, it should have information about the type of power supply that came with your system.

3. Use software utilities: There are several free software tools available that can help you identify the power supply installed in your computer. Examples include HWiNFO, Speccy, and CPU-Z.

4. Open your computer case: If you’re comfortable working with hardware, you can open your computer case and look at the power supply itself. The wattage and other details should be printed on the PSU’s label.

5. Consult with an expert: If you’re not sure what type of power supply you have or how to identify it, you can always seek advice from a technical expert or computer repair specialist.

By following these steps, you should be able to determine what type of power supply you have and ensure that it is adequate for your computer’s needs.


1. What is a power supply?
A power supply is a hardware component in a computer that converts AC power from the mains supply to lower voltage DC power.

2. How do I identify my power supply model?
To identify your power supply model, look for a label on the power supply unit (PSU). The label will have the manufacturer’s name, the model number, and specifications such as power output.

3. Can I check my power supply without opening my computer?
Yes, you can check your computer’s power supply without opening it. You can use third-party software like HWiNFO or Speccy to see the PSU model and other system specifications.

4. What is the power output of my power supply?
The power output of your power supply is usually listed on the label of the PSU. Look for the wattage rating, which indicates the maximum amount of power that the PSU can deliver.

5. Can I replace my power supply unit?
Yes, you can replace your power supply unit as long as the replacement PSU has the same or higher wattage rating as your old PSU and fits into your computer case. It is recommended to consult with a professional if you are unsure or inexperienced in computer hardware replacement.


In conclusion, by following the mentioned methods, any user can easily determine the type and rating of their power supply unit. It is crucial to know your PSU’s specifications and wattage as underpowered or overpowered PSUs can lead to system damage or failure. Therefore, always check the PSU unit before upgrading or assembling a PC. With a little research, one can have an uninterrupted and trouble-free experience.

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