C
Cindy BellAug 9, 2025
Why does my Acer Aspire 3935 Laptop say 'System CMOS checksum bad'?
- AAngela HawkinsAug 9, 2025
If your Acer Laptop shows 'System CMOS checksum bad - Default configuration used', it indicates a problem with the RTC battery. You should run the BIOS Setup Utility to reconfigure the system time and then reboot the system.