How To Fix Motherboard Error 99

Motherboard error 99 is a computer error code produced when the motherboard’s BIOS can’t find or identify your hard drive. This article will show you how to fix Motherboard Error 99.

Tips for Finding the Cause of Motherboard Error 99

If your motherboard gives you error 99, it can be difficult to determine the cause. However, there are a few tips that may help you find the culprit.

First, check all of the connections to your motherboard. Make sure that everything is properly plugged in and seated. If you’re using an aftermarket CPU cooler, double-check to ensure it’s properly installed and not causing any interference.

Next, take a look at your BIOS settings. If you’ve recently made any changes, try reverting to the defaults and see if that helps. If not, try resetting the BIOS entirely.

If those tips don’t help, your motherboard may be simply faulty. In that case, the best course of action is to replace it with a new one.

How to Fix Motherboard Error 99

If your motherboard has error 99, it is most likely due to a faulty component. To fix this error, you will need to replace the faulty component.

To do this, you will need to:

  1. Power off the computer and unplug all power cables from the motherboard.
  2. Remove the faulty component from the motherboard. This will vary depending on what type of component is faulty but is generally done by removing screws and unscrewing the component from its socket.
  3. Obtain a replacement component from your local electronics store or online. Make sure to get an exact replacement for the faulty component.
  4. Install the replacement component onto the motherboard in the same location as the old one. Screw it in place if necessary.
  5. Plug all power cables back into the motherboard and power on the computer. The error should now be fixed!
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Possible Solutions to Fix Motherboard Error 99

When it comes to troubleshooting a Motherboard Error 99, there are several possible solutions that you can try. Below, we will review some of the most common methods for fixing this error code.

1. Restart Your Computer

If you are seeing the Motherboard Error 99 code, the first thing that you should try is restarting your computer. This is a simple solution that can often fix the issue.

2. Update Your BIOS

Another potential solution for fixing the Motherboard Error 99 code is to update your BIOS. This can be done by downloading the latest BIOS update from your computer’s manufacturer’s website and installing it on your system.

3. Run a Diagnostic Test

If you are still seeing the Motherboard Error 99 code after trying the solutions above, there is likely a hardware issue with your motherboard. In this case, you can try running a diagnostic test on your motherboard to see if there are any problems.

You can do this by booting into your computer’s BIOS and running the built-in diagnostic tool.

Is there a fix for Error 99?

If your motherboard is displaying Error 99, there is a problem with the communication between the CPU and the Motherboard. This can be caused by several things, including loose cables, bad drivers, or faulty hardware.

If you’re not sure what’s causing the error, try troubleshooting each component separately. 

First, check all the cables inside your computer case to ensure they’re securely connected. If using a custom cooling solution, ensure that all the fans and water pumps are working properly. If everything looks fine inside your case, it’s time to check your drivers. 

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Visit the support website for your motherboard and download the latest versions of all of the drivers. Once you’ve updated your drivers, restart your computer and see if Error 99 persists. If it does, there’s a good chance that you have faulty hardware. 

Unfortunately, there’s no easy way to fix faulty hardware. You’ll need to take your computer to a qualified technician who can diagnose and replace the defective component.

How to Avoid Motherboard Error 99

There are a few things that you can do to avoid motherboard error 99. First, ensure you have the latest BIOS installed on your motherboard. You can usually find this information on the manufacturer’s website. Second, check all of the cables and connections to make sure that they are secure.

Third, try resetting the CMOS. This can be done by either unplugging the power cord from the PSU for a few minutes or removing the CMOS battery and replacing it after a few minutes. Lastly, you may need to replace your motherboard if all else fails.

Tips for Preventing Motherboard Error 99

Assuming you have ruled out a faulty motherboard, here are some tips for preventing Error 99:

  • Make sure all your drivers are up to date
  • Update your BIOS to the latest version
  • Check that all your cables are properly connected
  • Ensure that there is no dust or dirt buildup on any of the components
  • Make sure that all your fans are working properly

Frequently Asked Questions

How can I test my motherboard to see if it’s faulty?

There are a few different ways to test your motherboard to see if it is faulty. One way is to use a multimeter to check for continuity between the various pins on the board. Another way is to use a diagnostic tool like Memtest86 to test for memory errors. Finally, you can also try swapping out the board for a known good one to see if that fixes the problem.


With these easy steps, you should be able to fix the Motherboard Error 99 in no time. Remember to follow the instructions carefully and have patience while waiting for the process to complete. If you still face problems, don’t hesitate to contact customer support for additional assistance.

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Matt Wilson
By Matt Wilson

Matt Wilson is a PC gaming and hardware expert with years of experience. He's a trusted tech product reviewer for gamers and tech enthusiasts.

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