How to Check Power Supply on PC Windows 11: A Step-by-Step Guide

Checking the power supply on your PC is an essential diagnostic step if you’re experiencing hardware issues or your computer isn’t turning on. Thankfully, with Windows 11, you can quickly assess your power supply’s status without needing to open up your computer case. Here’s a quick guide on how to do it.

Step by Step Tutorial: Check Power Supply on PC Windows 11

Before we dive into the steps, it’s important to understand what we’re aiming to achieve. By following these steps, we’ll be able to determine if our power supply unit (PSU) is working correctly or if it could be the cause of any issues we’re experiencing with our PC.

Step 1: Open Power & Sleep Settings

First things first, head over to your Windows 11 settings and open up the ‘Power & Sleep’ settings.

In this section, you’ll find various options related to your computer’s power usage, including the status of your PSU. It’s a good starting point to ensure that your Windows 11 power settings are correctly configured.

Step 2: Check Power Supply Health in Event Viewer

Next, use the ‘Event Viewer’ to check the health of your power supply.

Event Viewer is a tool that logs all significant events on your computer. By checking the system logs, you can see if there have been any recent warnings or errors related to your PSU. This can indicate if there’s an issue that needs further investigation.

Step 3: Use Third-Party Software

If you need more detailed information, consider using third-party software to check your PSU.

There are several reliable programs out there that can give you a more comprehensive overview of your power supply’s health and performance. These tools often provide detailed reports that can be helpful for troubleshooting or when seeking technical support.

Step 4: Physically Check the Power Supply (If Necessary)

As a last resort, if you suspect your power supply might be the problem, you might need to physically check it.

This step involves opening up your computer case and visually inspecting the PSU. Look for any obvious signs of damage, like burn marks or a smell of burning electronics. Remember, safety first – always ensure your computer is turned off and unplugged before touching any internal components.

After completing these steps, you should have a better understanding of your PC’s power supply status. If any issues are identified, you can then take steps to resolve them, whether that means tweaking your settings, getting professional support, or possibly replacing the PSU.

Tips: Enhance Power Supply Check on PC Windows 11

  • Regularly monitor your PC’s power usage through the ‘Power & Sleep’ settings.
  • Keep an eye on the ‘Event Viewer’ for any unusual errors or warnings.
  • Consider using a UPS (Uninterruptible Power Supply) to protect your PC from power surges and outages.
  • Ensure your computer’s ventilation is not blocked to avoid overheating, which can affect the PSU.
  • Keep your PC’s software and drivers up to date for optimal power management.

Frequently Asked Questions

What is Event Viewer?

Event Viewer is a component of Microsoft Windows that lets you view and analyze the event logs on your computer. It’s a helpful tool for diagnosing hardware and software problems.

Can I check my power supply without opening my PC?

Yes, you can check the power supply’s status through the ‘Power & Sleep’ settings and ‘Event Viewer’ without opening your PC. However, for a physical inspection, you will need to open the computer case.

Do I need special software to check my PC’s power supply?

While it’s not essential, third-party software can provide more detailed information about your PSU’s health and performance.

What are the signs of a failing power supply?

Signs of a failing power supply can include random computer crashes, intermittent power loss, unusual noises, or the smell of burning electronics.

Can a power supply affect my PC’s performance?

Yes, a faulty or underpowered power supply can lead to hardware instability, reduced performance, and even damage to other PC components.


  1. Open Power & Sleep Settings
  2. Check Power Supply Health in Event Viewer
  3. Use Third-Party Software
  4. Physically Check the Power Supply (If Necessary)


Understanding how to check the power supply on PC Windows 11 is crucial for maintaining your computer’s health and preventing potential issues. Whether you’re a seasoned tech enthusiast or a casual user, keeping tabs on your PSU can save you from unexpected hardware failures and data loss. By using the built-in tools provided by Windows 11, like the ‘Power & Sleep’ settings and ‘Event Viewer’, or opting for third-party software for a more detailed analysis, you can ensure your power supply is functioning correctly. And remember, if in doubt, don’t hesitate to seek professional assistance. After all, when it comes to your PC’s power supply, it’s always better to be safe than sorry. So, take the time to check your power supply regularly, and enjoy the peace of mind that comes with a well-maintained computer.

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