How To Find Power Supply Info On Pc?

Power supply is an essential component of any computer system that provides power to all other hardware components. It is responsible for converting the AC current from the wall outlet into DC current that the computer components can use. However, when it comes to upgrading or replacing the power supply of a PC, finding the necessary information about the existing power supply can be a daunting task.

Fortunately, there are various ways to obtain the power supply information of a PC. The information can be easily obtained through system specifications, online tools, or physically inspecting the power supply. In this guide, we will walk you through the different methods to find the power supply information of your PC, which will help you choose the right power supply for your system, and avoid any compatibility issues.

How to Find Power Supply Info on PC

There are several ways to find power supply information on a PC. Here are some of the ways:

1. Check the Power Supply Unit (PSU): Look on the PSU itself for a label that shows the wattage and amperage ratings. The label may also provide additional information such as voltage, efficiency, and certifications.

2. Check the Computer Manual: The computer manual may provide information on the power supply unit that is used in the computer. Look for the specifications section in the manual for details on the PSU.

3. Check the BIOS: Some computers may display power supply information in the BIOS. Reboot the computer and press the appropriate key to enter the BIOS. Navigate to the hardware or system information section to see if PSU info is provided.

4. Use a Power Supply Calculator: There are several online power supply calculators that can help you determine the power requirements of your PC and recommend an appropriate power supply unit.

5. Use a Hardware Monitoring Software: There are several hardware monitoring software tools, such as CPU-Z, that can display power supply information. These tools can provide details such as the PSU model, wattage, and efficiency.

6. Open the Computer Casing: In some cases, the PSU information may be printed on the PSU itself or the power connectors. If you feel comfortable opening your PC casing, you can look for this information on the PSU or connectors. Be sure to unplug the power cord before opening the casing.


1. Q: How can I find the power supply information on my PC?
A: One way is to open the computer case and look for a label on the power supply unit (PSU) that provides information such as model number, wattage output, and voltage specifications.

2. Q: Is there a software tool that can help me find power supply information on my PC?
A: Yes. There are several software tools such as HWiNFO, CPU-Z, and Speccy that provide detailed information about the hardware components of your PC, including the PSU.

3. Q: Can I find power supply information in the BIOS/UEFI settings of my PC?
A: Yes. You can access the BIOS/UEFI settings by pressing a key (F2, F10, or Del) during the boot-up process. Look for the Power Management section to find information about the PSU.

4. Q: Is it possible to find power supply information without opening the computer case?
A: Yes. Some manufacturers print the PSU information on the back or the side of the computer case. You can also check the product manual or the manufacturer’s website for this information.

5. Q: Why is it important to know the power supply information of my PC?
A: The power supply is a critical component that provides power to all the other hardware components in your PC. Knowing the wattage output and voltage specifications of your PSU can help you determine if your system is getting enough power and identify potential issues that may arise due to insufficient power.


In the world of computer hardware, knowing the specifications of your power supply can be crucial for ensuring your system runs smoothly and to its fullest potential. Whether you’re upgrading your components or troubleshooting issues, understanding how to find power supply information on your PC can make all the difference. With the steps and tips outlined above, you can easily locate this information and make informed decisions about your computer’s performance. So, the next time you need to know more about your power supply, you’ll be armed with the knowledge you need to succeed. Happy computing!

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