User`s guide
Copyright © 2008 congatec AG B915m10 28/92
Simplied Overview of BIOS Setup Data Backup5.3.1
No
F1
F2
No
No
Yes
Yes
Yes
Yes
Is CMOS Data in RTC valid?
Store CMOS Data to RTC
Processing time for these events:
Maximum: 2 seconds
Typical: <1 second
Store CMOS Data to Flash
Read back CMOS Data
from Flash to verify write
procedure has been completed
Save and Exit <F10> key
User changes
OEM default image present?
Load OEM CMOS Defaults
Warning message is displayed
= congatec Embedded BIOS enhancements
= standard AMI BIOS processes
User requests to enter setup
using the <Del> key
“Halt on Errors”
Default BIOS Message
Load Manufacturer CMOS Defaults
Error Message is displayed
BIOS waits for either <F1>
or <F2> key to be pressed
Boot to OS
Launch Setup
Entering Setup
System Reset
Once the automatic reset has been
triggered the congatec module can be
powered off and removed from the carrier
board without losing CMOS settings.
Power On
No
Yes
Is CMOS Data
Backup Image present and valid?
Write CMOS Data Backup
Image from Flash to RTC
The above diagram provides an overview of how the BIOS Setup Data is backed up on congatec modules. OEM default values mentioned
above refer to customer specic CMOS settings created using the congatec System Utility tool.