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[ The PC Guide | Troubleshooting and Repair Guide | The Troubleshooting Expert | Troubleshooting Specific Components | Troubleshooting the Motherboard and System Devices | CMOS Memory or Real-Time Clock ]
The CMOS battery is failing intermittently, indicating that it is losing power, or losing settings once in a while
Explanation: The CMOS battery is working sometimes, but is occasionally failing, causing loss of BIOS settings or error messages.
Diagnosis: This situation can be very annoying, and in some PCs can last for a very long time. It usually means that the CMOS battery voltage is getting low and that it needs to be replaced, especially if the problem is occurring with increasing frequency. It can also result from a bad connection to the motherboard.