Thank you for providing the additional information. The message "CMOS checksum is invalid - CMOS reset (502)" typically indicates an issue with the BIOS settings on your PC, which can be related to the CMOS battery. This battery helps retain BIOS settings when the computer is powered off.
Here are a few steps you can take to address this issue:
Check the CMOS Battery: If your PC is older, the CMOS battery may need to be replaced. This is usually a CR2032 battery located on the motherboard.
Reset BIOS Settings: You can try resetting the BIOS to its default settings. This can often resolve checksum errors. You can usually do this by entering the BIOS setup during startup (often by pressing a key like F2, DEL, or ESC) and selecting the option to load default settings.
Update BIOS: If the problem persists, consider checking for a BIOS update from your motherboard manufacturer’s website. An update can sometimes resolve underlying issues.
If you're not comfortable performing these steps or if the problem continues after trying them, please let me know, and I can assist you further.
Thank you, I look forward to helping you resolve this issue!
