How to check power supply on pc windows 8

Last Updated: Feb 13, 2024 by

One of the most common issues that PC users face is a malfunctioning power supply. This can cause a variety of problems, from random shutdowns to complete system failure. In order to troubleshoot and fix these issues, it is important to know how to check the power supply on your PC running Windows 8. In this article, we will discuss the steps you can take to diagnose and fix power supply issues on your Windows 8 PC.

Checking the Power Supply

The first step in troubleshooting a power supply issue is to physically check the power supply unit (PSU) itself. Make sure that all the cables are securely connected and that there are no visible signs of damage or wear. If you notice any loose connections or damaged cables, replace them immediately.

Using a Multimeter

If the physical inspection does not reveal any issues, the next step is to use a multimeter to test the power supply. A multimeter is a device that measures electrical voltage, current, and resistance. You can purchase a multimeter at most hardware stores for a relatively low cost.

To use a multimeter, first turn off your PC and unplug it from the power source. Then, open the case and locate the 24-pin ATX connector on the motherboard. This is the main power connector from the PSU. Use the multimeter to test the voltage between the pins. The standard voltage for this connector is +3.3V, +5V, and +12V. If the readings are significantly lower or higher than these values, it may indicate a problem with the power supply.

Using a Power Supply Tester

Another option for testing the power supply is to use a power supply tester. This is a device specifically designed to test the functionality of a PSU. Simply plug the tester into the 24-pin ATX connector and turn on the power supply. The tester will display the voltage readings for each pin, allowing you to quickly identify any issues.

Troubleshooting Power Supply Issues

If the power supply tests indicate that there is a problem, there are a few steps you can take to troubleshoot and fix the issue.

Replace the Power Supply

If the power supply is faulty, the best solution is to replace it with a new one. Make sure to purchase a power supply with the correct wattage for your system. You can also opt for a higher wattage PSU to ensure that your system has enough power for future upgrades.

Check for Overheating

Overheating can also cause power supply issues. Make sure that your PC has proper ventilation and that all fans are working correctly. You can also use software to monitor the temperature of your system and make adjustments as needed.

Update Drivers and BIOS

Outdated drivers and BIOS can also cause power supply problems. Make sure to regularly update these components to ensure that your system is running smoothly.


By following these steps, you can effectively troubleshoot and fix power supply issues on your Windows 8 PC. Remember to always take proper safety precautions when working with electrical components and consult a professional if you are unsure about any steps. With a little bit of knowledge and some troubleshooting, you can keep your PC running smoothly and avoid any power supply problems.

Gulrukh Ch

About the Author: Gulrukh Ch

Gulrukh Chaudhary, an accomplished digital marketer and technology writer with a passion for exploring the frontiers of innovation. Armed with a Master's degree in Information Technology, Gulrukh seamlessly blends her technical prowess with her creative flair, resulting in captivating insights into the world of emerging technologies. Discover more about her on her LinkedIn profile.

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