If you know how to temporarily fix default cmos checksum errors loaded on your system, I hope this guide will help you.
Don’t suffer from PC errors any longer.
Restart your computer. A normal machine usually generates a new checksum and clears the error as well.Download and roll back the BIOS update. Download the article from the motherboard manufacturer’s website.Reset the main BIOS.Replace CMOS battery.Contact a computer technician or troubleshooter.
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On Windows, CMOS stands for Complementary Metal-Oxide Semiconductor. This is a type of battery-backed memory on your computer’s motherboard. The term also describes any type of storage technology that helps the BIOS (Basic Input/Output System) program on your PC save important system data such as date and time settings, boot order, hard drive, disk drive, and other configuration information. .
If there is a problem with thismemory, a “CMOS a Checksum Bad” error message will appear on the computer screen before Windows starts. In this guide, we will show you what is causing your current error and how to fix it.
What Is The Windows CMOS Checksum Error?
How do you handle a checksum error?
Try Winzip. There are many tools for compressing and exchanging large files.Select the Scan for corrupted files check box. Right click on the compressed RAR file.Recovery of damaged RAR documents.Uninstall and reinstall WinRAR.Download this RAR file again.Check your antivirus software.
“Checksum” describes almost any value (number or letter) used in the market to control or verify the integrity of files on a storage device. You will get a “CMOS Checksum Bad” error. on your PC when the values get corrupted as part of the CMOS memory. This may be due to the installation of a very incorrect or damagedpending BIOS update. The CMOS itself is powered by a new dedicated battery, so sometimes you only get a CMOS error checksum if the CMOS battery is low, bad, or old.
Power surges or improper power off of your PC are most likely the cause of a CMOS checksum error. Despite many factors, the cause of “bad CMOS checksum” can be effectively eliminated.
Fun fact: CMOS is also called real time clock (RTC), COS-MOS (complementary metal-oxide-semiconductor symmetry), or non-volatile random access memory (NVRAM).
How To Fix CMOS Checksum Error
If your Windows PC is showing a CMOS Checksum Bad error at startup, the troubleshooting solutions below should resolve the issue.
Perform automatic repair
You can also use Startup Repair to fix problems that prevent Windows from starting correctly. Shut down your computer and complete the following tasks.
- When your computer is on, you haveIt’s tempting to go to Settings > Update & security > Advanced startup > Restart now.
If Windows does not start, shut down and restart your computer. When the #1 lights are on, press the F8 or F11 key several times until the Advanced Boot Menu appears on the screen.
How do I fix CMOS date and time not set?
If you start your computer and receive a CMOS Checksum Bad – Date Time Not Set error message, don’t panic. It simply means that your motherboard’s CMOS battery is dead or dead. The good news is that fixing this key issue is quite simple – just replace the CMOS battery.
Another way to load the advanced boot menu is to restart your computer every 3 months. That is, turn on the PC and immediately press and hold the performance switch until your PC begins to wear out. Repeat this three times and the PC in question should load the extended boot menu on the third try.
- Select “Troubleshoot”.
- Select the start of recovery.
The tool will diagnose this PC and attempt to fix any system errors that are preventing it from booting up properly. Reboot your computer after the operation is complete and check if the CMOS checksum is already fixed.
Reset BIOS to factory settings
Launching the BIOS resets and deletes all information stored on the CMOS. By the way, the process also removes questionable data and false BIOS values. Accessing factory BIOS settings varies by motherboard and PC brand. Alt=””
How do I fix my CMOS settings?
Steps to clear CMOS using the normal jumper method Typically, the CMOS jumper has three pins next to the battery. In general, a CMOS sweatshirt has positions 1-2 and 2-3. Move jumper from default position 1-2 to position 2-3 for your specific CMOS. Wait 1-5 minutes, then return it to its normal position.
See our Windows BIOS reset guide for more information. Make sure you need to restart your computer after the BIOS. This will rebuild the checksum values and fix the CMOS error.
Why is CMOS checksum bad?
The CMOS checksum is definitely bad, maybe because the system was actually reset during BIOS boot, or the RTC battery just ran out. Restart the system. If the problem persists, replace the real time clock battery. Usually reset RTC.
Press F1 or F2 on the error page on the way to enter the BIOS setup page, then select Default, Load Defaults, or any other assigned option to restore the default BIOS settings. Alt=””
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