How To Test A Motherboard – BestGamingBoards

In this blog post, we will discuss how to test a motherboard. This is a crucial step when troubleshooting a computer, as it can help you determine whether the issue is with the motherboard or some other component. There are several methods for testing a motherboard, and we’ll walk you through some of them. Let’s get started!

How To Test A Motherboard

When attempting to test a motherboard, the first thing you should do is remove the motherboard from the computer case. That way, if any electrical components make contact with it (like a power supply or CPU fan), you don’t risk damaging the motherboard.

This is an important step when you’re troubleshooting a computer, as it can help you determine whether the issue is with the motherboard or some other component.

There are several methods for testing a motherboard, and we’ll walk you through them all. Let’s get started!

1- Test it using a power supply tester

An advanced method of testing the motherboard is to use a power supply tester (also known as a PSU tester). 

Power supply testers usually come with at least three different connectors that allow you to connect them to your motherboard – 20/24 pin ATX, 4 pin ATX, and 4 pin Molex. You’ll want to make sure that the connector you’re using matches up with the power supply in your computer (which is probably an ATX connector).

Once you’ve connected it to all of the motherboard’s ports, turn on the power supply tester and wait a few seconds. It should indicate whether the motherboard’s power supply ports are receiving power. This is a great way to test a motherboard, but keep in mind that it won’t be able to tell you whether or not the motherboard itself is broken – only its power supply ports.

2- Test it using a POST card

Your computer uses the Portable On System Test (POST) to detect all its components before booting into Windows, and POST cards work similarly. It is a card with LEDs that will light up when it’s plugged into the motherboard and turned on – if they turn on, the motherboard itself is working correctly.

This method tends to be more complicated than testing with a PSU tester, but it can be beneficial if you need to know whether the motherboard itself is broken.

3- Test it using a CPU power tester

CPU power testers are mainly used to test CPUs, but they can be used on motherboards with their onboard power supply. This is another advanced testing method that requires some knowledge of using a multimeter. A CPU power tester is just a wire with an alligator clip on one end so that you can connect it to the positive terminal on your motherboard’s power supply.

Once again, keep in mind that this method won’t be able to tell you about only its power supply ports. However, it is a more thorough test than testing with a PSU tester or POST card.

4- How To Test A Motherboard With A Multimeter

Using a multimeter to test the motherboard is essentially the same as using a power supply tester. The difference is that you’ll be able to determine exactly which component isn’t working by looking at your multimeter’s display – if no voltage is reaching the motherboard, then it means that there’s either no power being supplied or broken ports on the motherboard itself.

How To Diagnose Motherboard Failures

How To Diagnose Motherboard Failures

If you determine that the motherboard in your computer is broken, it’s time to start thinking about how to diagnose what caused the issue. If you’ve come this far and didn’t find any problems with the motherboard itself, then one of its components may have failed. But which one?

The easiest way to find out is to start swapping each component with a new one. For example, if your computer is having trouble booting up, you should start by replacing the motherboard’s power supply. If it works, you know that the issue was with the power supply and not a piece of hardware on the motherboard itself.

This method will take time and money, though, so if you’d instead not do it yourself, take it to Market in any Repairing Lap they will do it for you.


Why is it important to test a motherboard?

Testing a motherboard is essential for troubleshooting computer issues because it allows you to determine whether the problem is with the motherboard itself or some other component. It’s also helpful if you want to upgrade your computer but don’t know if your current components will work together.

What are some of the methods for testing a motherboard?

You can test a motherboard using a power supply tester, POST card, or CPU power tester. You can also use a multimeter to determine whether there’s no voltage reaching your computer’s components.

How to Test Motherboard Without CPU?

Testing the motherboard without a CPU is impossible. That’s because the motherboard has to be connected to all of your computer’s components for it to work – and that includes the CPU. If you could test the motherboard without a CPU, it would mean that one or more of its components isn’t working.


If you’ve determined that it is time to replace your motherboard, then read our blog post on how to choose a new one. You should also consider buying a multimeter if you find yourself needing to diagnose Motherboard failures in the future – they’re vital for troubleshooting any issues. 

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