How To Fix Motherboard Error 99? [Guide For Beginners]

As a computer user, keeping the device in good condition is essential because when the device is working in a bad situation, it will show some error code. And it will be frustrating for a user to fix the error code of the device. But what if your device shows motherboard error 99?

Firstly, Let me ask one thing;

Sometimes you feel that your laptop is getting slower and slower? Do you think that it needs to be changed and updated?

If your answer is yes, you have landed on the right article. The article will tell you how to fix motherboard error 99?

Reasons that cause Motherboard Error 99

Motherboard error 99 is one of the most common problems faced by every user. If you are getting this problem on your PC, then you must know what the reason behind this problem is. Here we have explained five reasons for motherboard error 99.


If your PC is overheating, then you can easily recognize this problem. If you notice that your computer is heating up, the motherboard has a significant problem.

Bad RAM module

If your PC is running slow, it could be due to a bad memory module. If you see that your RAM modules are very hot, then this is the reason why your PC is running slowly.

Faulty power supply

Motherboard error 99 can be due to a faulty power supply. If you notice that your power supply is not enough to run the PC, then this is the reason why your motherboard is facing this problem.

Unstable software

You must know that the PC is getting slow because of unstable software. If you install too much software on your system, then this will make your PC unsafe, and it will crash.

Faulty hard disk

If your hard disk is damaged or corrupted, it will make your PC unstable and cause the motherboard error 99.

How to fix Motherboard Error 99? Methods.

Here are some of the methods to fix motherboard error 99:

Check power supply

The first step is to check the power supply. The power supply is the source of your PC’s electrical energy. Check whether it is working correctly or not. If you find anything wrong, you must change the power supply.

Install a new operating system

You must install a new operating system and then install it on the motherboard. The installation process will be completed quickly, and you can enjoy using your computer for a long time.

Repair the hard drive

The hard drive is your computer’s root, so you must repair it. If you have damaged the hard drive, it will not be able to store data, and you will not be able to access the information stored in it.

Clean the fan and heatsink

If you have an old motherboard and your computer is overheating, you will not be able to use it for a long time. Your motherboard will also get damaged, and it will not be able to work correctly. Therefore, you must clean the fan and heatsink of your computer.

Clear the CMOS battery

When the CMOS battery is dead, it cannot provide the proper voltage to the CPU. Due to this reason, the CPU is unable to work correctly. The CMOS battery is one of the most critical components of your motherboard. It should be replaced once the CMOS battery stops working.

Use a new hard disk drive

In the worst situation, your motherboard will not run even if you have updated the BIOS and the motherboard repair software. If you have faced this problem, you should replace the hard disk drive.

Remove all the components from the motherboard

This is the most effective method to fix motherboard error 99. Remove all the components from the motherboard. Unplug all the cables and remove all the accessories of the motherboard.

Clean all the cables and connectors

It is an effective method to fix motherboard error 99. Clean all the cables and connectors and then connect all the components again.

Frequently Asked Questions

What does 99 mean on a motherboard?

99 is a representation of the voltage rating of the motherboard. If the voltage exceeds 99, the motherboard is usually a sign of overloading. Overloading the motherboard can damage it irreparably, so it is advised to get a new one instead.

How do I fix code 00 on my motherboard?

You can fix the code 00 on your motherboard if you’ve got a BIOS update. You can check if you have the latest BIOS version; if you don’t, you need to download the update. You can also try booting into Windows and checking to see if any driver updates are available. You can even update the BIOS through the motherboard manual itself.

What does A2 mean on a motherboard?

A2 means that the motherboard is 2-way, which allows for installing two identical boards side by side. This is a significant feature for people who have two computers side by side or want to expand their storage space, especially those using laptops.

How do I clear the CMOS battery?

To clear the CMOS memory, you need to remove the back cover of your camera. Then, you need to insert the SD card in the slot, turn on the camera, and then hit the menu button to access the memory card set. Go to the card, hit the delete option, and then select OK. You must put the SD card back into the slot and turn off the camera.

What is AA on an Asus motherboard?

AA means Audio Amplifier, a feature that allows the CPU to drive the audio card. This is necessary for high-end motherboards but is not required for budget boards.


These are the methods for; how to fix motherboard error 99? By using these methods, you will be able to enjoy the use of your computer for a long time. If you are facing any issues, then you can visit a technician who will be able to repair your motherboard.