Some Practical Ways To Resolve CMOS Checksum Error

The CMOS (Complementary Metal Oxide Semiconductor) checksum error is basically a conflict between the Basic Input/Output System (BIOS) and the CMOS. 

Generally, this issue arises whenever you try to boot your system. 

Moreover, when you shut down your system then the CMOS (Complementary Metal Oxide Semiconductor) notes a particular number that must match another that the BIOS (Basic Input/Output System) forms whenever you turn on the system again. 

In case, these two conditions don’t harmonize with the system, then it might generate a CMOS checksum technical error. 

However, if you are stuck with the same issue and wondering how to fix it, then don’t fret. Luckily, three are few effective fixes that you can try out to eliminate this annoying error. 

Here, in this tutorial, we have rounded up some efficient and easiest troubleshooting hacks by which you can fix this error on your own. 

Checksum Error Detection: Possible Reasons

If you are struggling with this “CMOS checksum” error, then you must recognize that there could be multiple reasons leading to this troublesome error notification. 

Moreover, know and understand the possible reasons behind this annoying error to avert such issues in the future.

Therefore, take a look at the below passage in detail to know some possible reasons that commonly trigger this CMOS checksum error on your system. 

Common reasons include: 

  • You may encounter this error because of the backdated or out-of-date BIOS (Basic Input/Output System) of the system.  
  • This CMOS checksum technical error may arise because of the dead battery of the system.
  • There are high chances that this issue might occur due to the bad system shutdowns. 
  • A power surge or corrupted motherboard of the system can be a major reason for this annoying technical error notification.
  • This CMOS checksum troublesome error may occur because of some internal technical bugs of your system.
  • The CMOS battery may not be working correctly. The life of the battery may have lapsed.  
  • You may encounter this error due to the viruses and malware attack. 

Apart from these possible causes, there are plenty of reasons by which this error notification might arise. Now, that you know the possible and common reasons for this issue. 

Therefore, let’s proceed with the solutions which are explained in the below section of this write-up. 

Checksum Error Detection: Exceptional Fixes to Troubleshoot 

You might come up with plenty of ways and steps to eradicate this error but, you require to perform some effective methods which can ensure the optimal solution in no time. 

Thus, point out the proper reason behind this annoying error and try to execute the troubleshooting hacks which are enlisted hereunder to address this CMOS checksum error notification. 

Hence, you just have to work your way down the ways until you find the one which works best for you. 

Way 1: Restart the System

In some cases, due to the abrupt power cutting on the system will induce the CMOS checksum technical failure the next time you boot up. 

Whenever you turn off the device by using the power button of the system without ensuing the normal shutdown process of the system can also damage the BIOS and generate this error notification to appear.

In case, you doubt that this failure is the main reason behind this troublesome issue, then it is advised to restart your system in order to fix it. After the restarting process, you need to wait for 10 minutes.

 Next, you need to check your system to see that the issue is resolved or not. In case, the issue still persists and averting you to use the system, then it is suggested to proceed with the methods given below. 

Way 2: Reset the Basic Input/Output System (BIOS)

A lot of Windows users have reported that they have resolved this annoying technical error by resetting the Basic Input/Output System (BIOS) of their system. 

Moreover, by performing this method, you can easily fix several internal minor bugs in your system. To reset the Basic Input/Output System (BIOS), go through the following steps:  

  1. At first, boot the system to the black screen along with the CMOS (Complementary Metal Oxide Semiconductor) checksum technical error.  
  2. After that, you might get a statement which simply states that the “Press F1 continue, F2 to enter SETUP” message. Next, press down the F2 key on your keyboard to enter the BIOS (As per the version of your Operating System, you need to press the key on your keyboard to enter the BIOS settings on the system). 
  3. Now, follow the entire details of the key usage. After that, choose the option “Load Defaults”. 
  4. Now, you might get a notification “Load BIOS Defaults(Y/N)?”. Here, option Y stands for YES and N stands for NO. Press down the Y key on the keyboard to choose to confirm your choice. Next, press down the Enter key on your keyboard to move further.

Additional Steps:

The steps are as follows:

  1. After completing all the above-stated steps, turn off the system and turn on it again. After that, check the system to see that the issue is resolved or not. In case, the issue still continues and avert you to use the system hassle-free, then enter the BIOS again.
  2. Choose the Standard CMOS Features in the BIOS window.
  3. In this step, verify the Time and Date of the system. In case, the date and time of the system are incorrect, then try to alter the values of the date and time. Tap on the Ok button to and save the changes that you have made. Alternatively, you can press down the Enter key on your keyboard to save the changes. 
  4. Now, verify the Drive or SATA. In case, you have no diskette drive on your system, you can choose the option “Disable or None or Not Detected”. This process will stop the diskette drive scanning on the system.
  5. At last, try to save the changes that you have made and close the BIOS window.

Now, check your system to see that the issue is resolved or not.  In case, the issue still persists then it is suggested to move out to the solutions given below. 

Way 3: Replace the Battery

This annoying error notification may continue to appear every time whenever you turn on your system due to some work, regardless of whether you shut it down accurately the last time. 

Moreover, this technical issue will suggest to press down the F1 key and reset the time and date of the system almost every time whenever it pops up on the screen. 

In such a case, sometimes, the battery of the CMOS (Complementary Metal Oxide Semiconductor) is the main culprit behind this troublesome situation.

 Generally, the CMOS battery is a vital component of the motherboard which offers power to the CMOS. With the help of the battery, the CMOS remains powered during the times when you turn off your system. 

Moreover, this battery ensures the BIOS loads the correct settings for the computer to start normally. 

This battery usually assures that the BIOS (Basic Input/Output System) of the system loads the accurate configurations for the system to begin normally. 

In case, the voltage of the battery is low, then there is a high chance that you can get this CMOS checksum error om your system. You need to replace this battery to get rid of this troublesome situation.   

Way 4: Update the BIOS

This is the most fundamental method that you can try to resolve this annoying error notification on your own. To update the BIOS, check out the following steps:

Download the BIOS Update File:

The steps are as follows:

  1. Go to the Start menu of the system and tap on it to open. 
  2. Write “ms info” in the search field of the Start menu. Tap on the Search button. Alternatively, you can press down the Enter key on your keyboard. 
  3. Choose the System Information option in the list of search results.  
  4. After that, verify your system’s model name next to the System Model heading. 
  5. In this step, you require to locate the number of the BIOS version to move further.
  6. To locate the BIOS version number, go to the web browser of the system. Open the manufacturer’s BIOS support website. From the manufacturer’s BIOS support website, choose the correct BIOS version for your system.
  7. Tap on the Download button. Now, the downloading process will begin. This downloading process may take some time to finish. Therefore, you require to wait until the entire downloading process completes.  

Updating your BIOS:

After completing the downloading process, now, it’s time to update your BIOS. 

  1. Before proceeding further, ensure that your system is plugged in with a strong power outlet. 
  2. In this step, extract the BIOS file. 
  3. Read your (Basic Input/Output System) BIOS file’s README document if applicable.
  4. At last, complete the updating process of the BIOS. 
  5. After completing all the above-mentioned steps, reboot the system for good measure. 

Winding Up…

Hopefully, after performing the above-mentioned troubleshooting ways you can easily fix this error without any hassle. Try the above-stated ways and see which one is giving you the ultimate troubleshooting solution in no time.

In case, you face any confusion or trouble, then please let us know in the comment section below. Also, you can opt for experts help.

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