Chapter 3 – AMI BIOS Setup 37Mobile NVR VPC-3350S3.1 System Test and InitializationThe system uses certain routines to perform testing and initialization during the bootup sequence. If an error, fatal or non-fatal, is encountered, the system will output a fewshort beeps or display an error message. The system can usually continue the boot upsequence with non-fatal errors.System verification routines check the current system configuration stored in the CMOSmemory and BIOS NVRAM. If the system configuration is not found or a systemconfiguration data error is detected, the system will load the Optimized Default Settingsand re-boot with this configuration automatically.There are four situations in which the CMOS settings will need to be setup or changed:- Starting the system for the first time- The system hardware has been changed- The system configuration was reset by the Clear CMOS jumper.- The CMOS memory has lost power and the configuration information is erasedThe system’s CMOS memory uses a backup battery for data retention. The batterymust be replaced when it runs down.