How to Check if Motherboard is Faulty?

A processor is like the brain of the computer but a motherboard is like a skeleton holding it together with all the elements. The overall performance of a system directly correlates with the motherboard. Since it acts as a platform where the rest of the elements come together and operate, you must take extra care of the mother circuit. This is the only way to keep everything flowing without causing any lag or issue. In contrast, if a motherboard gets faulty, your system will not work. Ultimately, you either have to cure the issue or purchase a new motherboard

There are several reasons for board failure that causes several problems in the board as well as the computer. You may find it difficult to boot your PC or your display could go black without any reason. There could be plenty of reasons why a motherboard is causing an issue. But we first need to know how to check if motherboard is faulty and how to cure the issues. Well, we have discussed everything about the topic so you can troubleshoot whether the board is faulty or there is some other issue. Just be with me until the end of this post. 

Some common symptoms of motherboard failure

Blinking diagnostic LEDs

Many laptops come with diagnostic LEDs to help to detect the issue even before getting into serious trouble. If your board has these error lights and you think it’s faulty, make sure to turn on the system and look at these lights. For example, Q-LEDs are given in some ASUS motherboards that start lighting up when they find some issues with any of the connected elements like CPU, RAM, or graphics card. For your information, these lights can blink differently depending upon the brand and errors so take help from the board’s manual. 

Is there any physical damage or burning odor?

If there are no diagnostic LEDs, the next thing is to check the physical appearance of the board. Most of the time, overheating or aging materials may blow up, leak, or damage the capacitors. If there is/are some damaged capacitor(s), it’s a clear sign that something is gone wrong. Another reason to detect damage is by sniffing the burning odor. It’s coming from the motherboard or system, it’s a clear sign that the board or any connected component on the board is damaged or overheated. So, you must check this as well.

The computer failed to start 

Sometimes, the computer fails to start in an expected way rather, loads the BIOS menu in the beginning. This indicates that something unusual is happening with the software or hardware connected to the motherboard. In such a situation, the problem is breaking the sequence of the way in which the motherboard performs and making it difficult to communicate with the other devices. If any of such symptoms are there, it’s a clear sign that something bad has happened with the motherboard making it unable to start. 

Blue Screen of Death

The Blue Screen of Death or BSoD can be caused due to faulty motherboard or driver errors. It coils also happened due to some other hardware connected to the computer or with the motherboard. For your information, it’s also known as Windows Stop Error so it doesn’t always mean for issue solely with the motherboard. According to Microsoft, there is a 10% chance that this is happening due to hardware issues and about 5% due to some unknown causes related to software.

blue screen of death

As I mentioned earlier, BSoD may be happening due to a bad driver of hardware failure. You would have seen an error like (0x000000(0x000000,0x000000,0x000000,0x000000) if you’re using a computer for a long time. If you’re getting errors like this one, you must copy it and visit Microsoft’s Knowledge Base to match this error. You would definitely get the reason why this error is happening. 

PC is turned on but the screen is black

If you press the power button, everything starts loading up, you get the backlit keyboard working, and indicators are blinking but there is no sign whether the screen is working or not—the screen is just black all the time. If this is happening with you, there are some chances that your motherboard is okay but only there are some minor issues within its structure. It may mean that the display ICs on the motherboard is faulty that are not letting the display turn on. Be with me, I’ll tell you the solution to this issue in the next section. 

Freeze or Glitches

What if your PC hangs or freezes in the middle of your workflow? It would be an unhappy moment. If this has ever happened with your computer, chances are it either has some issues regarding its software/operating system or is happening due to faulty hardware. You must troubleshoot to check if it is happening due to software. If not then pull your motherboard out and closely examine its structure, capacitors, ICs, and other connected elements to find out the issue. You can also check whether all the elements are connected in order or not. 

Beeping sounds

Another phenomenon that can tell you whether the motherboard is working fine or it’s faulty is the beeping sounds. It’s one of the most effective methods after diagnostic LEDs to test the reliability of the board. To check the board via this method, follow the steps given below.

Step 1: Unplug all devices other than CPU and memory modules.

Step 2: Start the system with BIOS in order to perform POST.   

Step 3: The computer will either beep via this test or not. 

If the computer beeps, you can check all types of beep codes and compare them with the one that is produced. In this way, you can know what exactly bad is happening with the motherboard.

Use diagnostic software

You can also use certain software to detect the problems with the motherboard. Some special diagnostic software can help you uncover some deeper issues and problems that the board is facing. For your information, not all the software can work on all the motherboards. Therefore, we have mentioned the top three so you can find one for your motherboard.

1. PC Doctor

2. Intel Processor Diagnostic Tool

3. PassMark Performance Test


A motherboard is one of the most important components in a computer since it holds all the elements together and lets them coordinate with each other. But if it’s faulty, it may cause some serious issues to the system’s overall performance and even damage the other components in some cases. Well, we can save it from reaching that stage if you know how to check if the motherboard is faulty which is the first step towards the solution. Well, we have tried our best to introduce you to all the possibilities of a faulty board. 

However, the exact root cause behind the bad mobo is quite difficult to find since it could be any out of tens of reasons. But still, it becomes quite convenient if your board has diagnostic LEDs, beeping sounds, or support software to detect the issue. If one doesn’t support all these features, in that case, you can check the board physically. You can start by checking the physical condition of the board or can check the capacitors on the board—if there is some damage, it’s a clear sign that there is some issue.

Zohaib Hassan
Zohaib Hassan is a staunch tech enthusiast and has been writing about his interactions with computers for years. He has been serving the PCIdeaz, GamingSilk, and BesTechReview as a content writer and manager along with experimenting and testing numerous tech masterpieces. Indeed, he often forgets about eating his spicy snacks when has his head on the computer screen.