Restart the computer. A normal restart usually creates a new checksum and eliminates the error.
Download and flash a BIOS update. Download the update from the motherboard manufacturer’s website.
Reset the BIOS.
Replace the CMOS battery.
Consult a technician or computer repair expert.

Solution 1: Replace Your CMOS Battery One of the main causes of the CMOS checksum error is CMOS batteries.
Solution 2: Reset BIOS Settings to Default Faulty BIOS settings is another main cause of this issue.
Solution 3: BIOS Recovery (Intel Desktop Boards) If you have an Intel desktop board, please follow the steps below.

This problem can usually appear during the BIOS splash screen and your personal device will not be able to load system performance. Don’t worry, here is a step by step guide on how to fix a CMOS checksum error.

This will restore the checksum values ??and fix the CMOS error. Press F1 or F2 on the page with a specific error to go to the BIOS setup page and select “Default”, “Load default settings”, or another assigned action to recover the BIOS. Some computers may require users to press a different secret (usually Del or F8) to access our Windows BIOS setup page.

How to fix CMOS checksum error | Invalid 502 1 Replace CMOS battery#N#The CMOS battery is a small mouse battery that is usually stored on the motherboard. Connected to Reset BIOS Plus

One of the most common causes of a checksum error is also the easiest to fix. The battery that powers the CMOS is a battery, be careful this tool can run out of power. When the battery is low, CMOS can no longer store information. Other causes are power surges and sudden energy losses.

How do I fix CMOS checksum error Windows 10?

How to fix CMOS checksum errors in Windows 10? Restart your computer. Replace battery. Repair the CMOS battery terminals. Reset BIOS settings. Update BIOS. Replace motherboard.

How do I fix CMOS checksum error in Windows XP?

To fix CMOS checksum errors: Restart your computer. A normal reboot usually creates a new checksum and clears the error. Download and release the BIOS update. Download it from the motherboard manufacturer’s website. Reset BIOS settings. Replace CMOS battery. Contact a netbook repair technician or an expert.

How do I fix CMOS checksum error windows 7?

BIOS version 9 or lower Turn off the desktop and wait five seconds Turn on all computers When the first screen appears, do one of the following: Press f5 to restore the default BIOS settings. Press F10 to save the values ??and exit the menu. Restart your computer to check if the error persists. Replace that particular battery on the motherboard.