How to See What Power Supply I Have on Windows 11: A Guide

Knowing the power supply in your Windows 11 computer can be important for upgrades or troubleshooting. Fortunately, it’s a straightforward process that can be done in just a few steps. After reading this brief overview, you’ll have a clear idea of how to find out what power supply you have.

Step by Step Tutorial: Finding Your Power Supply in Windows 11

Before we dive into the steps, let’s understand why we’re doing this. Identifying your power supply unit (PSU) helps you know if it’s sufficient for your components or if an upgrade is needed. Here’s how to find this information.

Step 1: Open the System Information Tool

Open the "System Information" app on your Windows 11 PC.

System Information is a handy tool that provides a detailed overview of your system’s hardware and software specifications. You can find it by searching in the Start menu.

Step 2: Navigate to Components

In the System Information window, click on "Components" to expand the section.

Under Components, you’ll find several categories that list information about your computer’s hardware, like "Display," "Sound Device," and "Storage."

Step 3: Select "Power"

After expanding "Components," select "Power" to view power-related information.

The Power section will show you details about your battery, power policies, and, most importantly, your power supply.

Step 4: Look for "Power Supply"

In the Power section, find the entry labeled "Power Supply" for details about your PSU.

This entry will give you information like the PSU’s capacity and manufacturer. It may not show the exact model, but you’ll get much-needed basic details.

After completing these steps, you’ll have obtained the information about your power supply. You can use this data to decide if you need to upgrade your PSU or to ensure any new components you plan to add will be compatible with your current power supply.

Tips for Identifying Your Power Supply in Windows 11

  • If the System Information doesn’t provide enough details, check the manufacturer’s website or documentation that came with your PC.
  • Upgrading your PSU can lead to a more stable system and allow for future hardware upgrades.
  • Always turn off and unplug your PC before opening it to check the power supply physically.
  • Make sure you ground yourself to prevent static electricity from damaging your components.
  • Take a picture of your current PSU setup before making changes, so you can refer back to it if needed.

Frequently Asked Questions

What if my power supply isn’t listed in the System Information tool?

If the System Information tool doesn’t list your power supply, you may have to open your PC case and look at the PSU directly for a label or sticker with the information.

Can I find out my PSU model without opening my PC?

You can sometimes find the PSU model through the System Information tool or by checking your PC’s documentation or the manufacturer’s website. However, for non-branded or custom-built PCs, you may need to open the case.

Why do I need to know my power supply details?

Knowing your power supply details is crucial when considering hardware upgrades or diagnosing power-related issues.

Can a power supply affect my PC’s performance?

Yes, an inadequate or failing power supply can lead to system instability, crashes, and prevent new components from working correctly.

Is it safe to open my PC and check the power supply?

Yes, but ensure your PC is turned off and unplugged. Also, ground yourself to avoid damaging components with static electricity.


  1. Open the System Information Tool.
  2. Navigate to Components.
  3. Select "Power."
  4. Look for "Power Supply."


So there you have it, a step-by-step guide to finding out what power supply you have on your Windows 11 computer. This process might seem a bit technical, but it’s pretty straightforward once you get the hang of it. Remember, knowing your power supply details is not just about satisfying curiosity; it’s about ensuring that your system runs smoothly and that you’re prepared for any upgrades or maintenance.

If you encounter any issues or the information isn’t listed, don’t hesitate to reach out to your computer’s manufacturer or consult a professional. They can help you identify your power supply and provide advice on any potential upgrades you might be considering.

Keep in mind that a good-quality power supply can make all the difference in your PC’s performance and longevity. It’s the heart of your system, pumping vital energy to all components, and it deserves your attention. So, are you ready to peek under the hood of your Windows 11 machine and see what’s powering your digital world? Go ahead, give it a try, and ensure your PC is set up for success.

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