

CMOS CHECKSUM ERROR DEFAULTS LOADED PC
If there’s a power surge and your PC shuts down unexpectedly, you can get the checksum error because of the CMOS being unable to generate a checksum number. Although it’s a rare occurrence, you may also get this error because of a corrupt BIOS.

If the BIOS installed on your PC is not up to date, it could conflict with the latest OS versions. Issues with the BIOS on your PC could also be the reason why you are getting the error.

This again leads to a conflict between the BIOS and CMOS checksum values causing the checksum error. When the charge in the battery completely drains out, the CMOS is unable to generate a checksum number. The CMOS chip in your PC does not run on the standard power input but requires an additional small battery to operate. Once the shutdown process initiates, make sure to unplug your PC from the power source only when the monitor and the CPU switch off on their own. Make sure to shut down your PC properly by going to the Power option in the Start menu. And as we know, if there’s a conflict between checksum numbers, you will get this error. This is because an improper shutdown did not give your CPU enough time to generate a checksum number. If you did not shut down your PC properly, you may get the checksum error. So, what are the reasons that could lead to conflict between BIOS and CMOS data on your PC? Well, there are various issues that can trigger the CMOS checksum error, some of which can be easily fixed, and some may even require hardware replacement.
