New battery for the motherboard?
even after changing the new battery the same error continue, But without the battery Failure error warning. I reenter the time and date in CMOS set up and save the changes and exited, and i shut down my PC. after few minutes i switched on the PC but the same error continues without the Battery Failure Error, which means CMOS Check sum error and CMOS Time not set error Continues. i tried another new battery but no help, i have to always enter the correct Date and time values and Save and exit changes every time to correct my date and time. I even tried resetting the default bios, but no help. Please assist