AFL-HM55 Series Panel PCPage 59Esc key Main Menu – Quit and do not save changes into CMOSStatus Page Setup Menu and Option Page Setup Menu --Exit current page and return to Main MenuF1 key General help, only for Status Page Setup Menu and OptionPage Setup MenuF9 key Load optimized defaultsF10 key Save changes and Exit BIOSTable 5-1: BIOS Navigation Keys5.1.3 Getting HelpWhen F1 is pressed a small help window describing the appropriate keys to use and thepossible selections for the highlighted item appears. To exit the Help Window press ESC orthe F1 key again.5.1.4 Unable to Reboot After Configuration ChangesIf the computer cannot boot after changes to the system configuration are made, CMOSdefaults. Use the jumper described in Chapter 4.5.1.5 BIOS Menu BarThe menu bar on top of the BIOS screen has the following main items: Main Changes the basic system configuration. Advanced Changes the advanced system settings. Chipset Changes the chipset settings Boot Changes the system boot configuration. Security Sets User and Supervisor Passwords. Save & Exit Selects exit options and loads default settingsThe following sections completely describe the configuration options found in the menuitems at the top of the BIOS screen and listed above.