If you encounter the error message "Warning!! CMOS Checksum Error" during your machine’s startup process, it typically points to an issue with the CMOS battery, a small but crucial component responsible for storing BIOS settings.

This article provides a step-by-step guide on how to identify the cause of this error and safely replace the CMOS battery in your PC. Whether you’re an experienced technician or performing this for the first time, the instructions below will help you restore your system’s functionality quickly and safely.

For any further assistance, you can always reach out to us at:
Wheel Restore through our ticket system.