Turn off your computer and follow the options below. Startup Repair can also be used to issues that prevent Windows from starting normally.
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If your Windows PC displays an “Invalid CMOS Checksum” error during startup, the troubleshooting solutions listed below should resolve the issue. You can usually start your computer without a CMOS battery if your default CMOS settings are compatible with the operating system, or if you manually set the correct CMOS settings after every power off. The funny CMOS is often referred to as Real Time Clock (RTC), COS-MOS (Complementary Metal Oxide Semiconductor Symmetry) or Non-Volatile Random Access Memory (NVRAM). Despite many causal relationships, “Invalid CMOS Checksum” is easy to fix. Power surges or improper unplugging of the computer can also cause a CMOS checksum error. In addition, you may receive a control error.Full CMOS amount if the CMOS battery is low, defective, or old. The CMOS itself is powered by this special battery. This may be due to installing an incorrect or corrupted BIOS update. Get the CMOS Checksum Bad error on your PC when the values are only corrupted in the CMOS memory.
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“Checksum” describes a unique value (number or letter) used to control or verify the integrity of files on a storage device.
#Cmos checksum invalid update
Download the update from the motherboard manufacturer’s website.Ĭontact a repair shop or computer repair specialist Rev. A normal reboot usually creates a new checksum and fixes the biggest error.ĭownload and flash the BIOS update. How do I fix the CMOS error on my computer?