CMOS checksum error

The DPO5104 is falling to powered on, it displays an error message of 'CMOS checksum error - Defaults Loaded'. What should be done to fix the issue?

The CMOS checksum error is most likely the result of the CMOS battery on the processor board needing to be replaced.

You can access the BIOS by pressing the Del key at power on and select Optimized Defaults- then save and exit. The oscillosope should boot up, or there are other issues.