How to Check Computer Power Supply on Windows Pc's

Posted by Robert Wisniewski on

Blog Title: The Ultimate Guide on How to Check Computer Power Supply on Windows PCs

When it comes to maintaining your PC's health, checking the power supply is one of the most crucial yet easy maintenance tasks that are often overlooked. In fact, most computer problems can be traced back to the power supply unit (PSU). Therefore, it is important to regularly check and diagnose the PSU to avoid any potential damage to your PC.

If you are a Windows user, worry not, because in this Ultimate Guide, we will take you through the step-by-step process of how to check computer power supply on Windows PCs. So, buckle up and let's dive in.

power supply

Step 1: Shut down Your Computer

The first step is to shut down your computer properly and unplug it from the power source. This ensures your safety while handling the inside of your computer.

Step 2: Remove Side Panel of Your Computer

To access the PSU, you need to remove the side panel of your computer. Once you have removed the panel, locate the power supply unit that is usually at the bottom right corner of the computer case. It is pretty easy to spot because it has a large bundle of cables connected to it.

Step 3: Locate the 20/24 Pin Motherboard Connector

The PSU is a large metal box with a fan that connects to the motherboard of your computer. Look for the 20/24 pin socket that is connected to the motherboard. The 20/24 pin motherboard connector is the main power supply cable that provides power to all the components of your computer's motherboard.

Step 4: Check the Voltage Readings

The next step is to check if the PSU is providing the correct voltage to your computer. You will need a multimeter to take the voltage readings. Set the multimeter to DC voltage and connect the black probe to a grounding point such as a screw on the PSU and the red probe on the 20/24 pin motherboard connector. The typical reading is 3.3 volts for the orange wire, 5 volts for the red wire, and 12 volts for the yellow wire. If any voltage readings are off, then it indicates that your PSU is defective and needs to be replaced.

Step 5: Use a Power Supply Tester

If you do not have a multimeter, you can use a power supply tester that connects to the PSU's 24-pin connector. This is a much simpler way to check the PSU, and it can quickly identify any issues with the power supply. The power supply tester displays the voltages of the PSU and highlights any irregularities.

In conclusion, taking a few minutes to check your PSU can save you a lot of trouble and money in the long run. We hope this guide has helped you understand how to check computer power supply on Windows PCs. If you have any doubts or complications while handling the PSU, do not hesitate to seek the help of a professional. Remember to handle your computer with care and safety.

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