Working with the BIOS and CMOS

• BIOS software enable you to control and troubleshoot the system and the different hardware components without loading the OS.
• Types of BIOS chips include Dual In-Line package and plastic leaded Chip Carries.
• BIOS run the power-on self-test when the system starts to ensure that all the hardware connected to the system is working properly.
• CMOS is the memory chip located on the motherboard that stores the BIOS settings.
• BIOS setup utility enables you to modify the settings and store them in the CMOS.
• The BIOS setup utility main menu page display the different BIOS options that you can change.
• Standard CMOS setup page enables you to set the basic settings of the system.
• Advanced setup page enables you to access the advanced functions of the BIOS.
• Power management page enables you to control the power setup of the system.
• PnP feature enables the system to automatically search for new hardware connected to the system.
• Optimal Settings enables you to set the BIOS options to the default.
• Best Performance Settings enables you to set the BIOS options so that the system performs the processing activity at the best level.
• Features setup page enables you to control the built-in components settings.
• CPU PnP setup page display and enables you to set the details of the microprocessor installed on the motherboard.
• Hardware Monitor displays the system hardware detail  to monitor the temperature and the system power consumption.
• BIOS password is used to protect the settings stored in the CMOS.
• Backing up the BIOS value enables you to restore the BIOS and it also value when the system crashes.
• Updating the BIOS adds additional functions to the BIOS and it also fixed all the eroors and bugs in the BIOS.
• BIOS checks the hardware and emits a series of beeps if the hardware connected to the system is not functioning properly.
• You can troubleshoot the system using the BIOS beep codes.