2-12 Setup and OperationSYSTEM CONFIGURATIONThis subsection describes the Setup utility program that allows the system configuration in-formation to be viewed and changed.NOTE: The system ships from the factory withthe correct system parameters for the configura-tion. Unless adding optional hardware, Setupdoes not need to be run.However, run Setup to set features that custom-ize the system, such as security features.System configuration information is stored in nonvolatile memory. Nonvolatile memory inthe system is a complementary metal-oxide semiconductor (CMOS) chip backed up by abattery on the system board. The battery supplies continuous power to the CMOS memoryand maintains configuration information when system power is off.Setup UtilityThe Setup utility is used to view and set system parameters. Use the Setup utility programn to set the time and date.n to update or check system parameters when adding or removing expansion op-tions.n to correct a hardware discrepancy when the Power-On-Self-Test (POST) displaysan error message and a prompts appears to run Setup.n to check the installation of optional memory by comparing the amount memoryinstalled with the amount of memory displayed by Setup.n to change certain system operating parameters.n to customize the system with security features such as passwords and I/O controlfunctions.n to set system parameters in the event that the system battery needs to be replaced.