Ampro Corporation COM 830 - Manual (Page 23)

Chapter 2 Specifications
COM 830 Reference Manual 17
Simplified Overview of BIOS Setup Data Backup
The above diagram provides an overview of how the BIOS Setup Data is backed up on modules. OEM
default values mentioned above refer to customer specific CMOS settings created using the System Utility
tool.
Once the BIOS Setup Program has been entered and the settings have been changed, the user saves the
settings and exits the BIOS Setup Program using the F10 key feature. After the F10 function has been
evoked, the CMOS Data is stored in a dedicated non-volatile CMOS Data Backup area located in the BIOS
Flash Memory chip as well as RTC. The CMOS Data is written to and read back from the CMOS Data
Backup area and verified. Once verified the F10 Save and Exit function continues to perform some minor
processing tasks and finally reaches an automatic reset point, which instructs the module to reboot. After the
Automatic Reset has been triggered the module can be powered off and if need be removed from the
baseboard without losing the new CMOS settings.
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