BIOS includes a BIOS Setup program that allows the user to modify basic system configuration settings or to activate certain system features. When the power is turned off, the battery on the motherboard supplies the necessary power to the CMOS to keep the configuration values in the CMOS. To access the BIOS Setup program, press the key during the POST when the power is turned on. • BIOS flashing is potentially risky, if you do not encounter problems of using the current BIOS version, it is recommended that you don't flash the BIOS. To flash the BIOS, do it with caution. Inadequate BIOS flashing may result in system malfunction. • It is recommended that you not alter the default settings (unless you need to) to prevent system instability or other unexpected results. Inadequately altering the settings may result in system's failure to boot. If this occurs, try to clear the CMOS values and reset the board to default values. (Refer to the "Load Optimized Defaults" section in this chapter or introductions of the battery/ clearing CMOS jumper in Chapter 1 for how to clear the CMOS values.) BIOS Setup Program Function Keys Move the selection bar to select the screen Move the selection bar to select an item Execute command or enter the submenu Main Menu: Exit the BIOS Setup program Submenus: Exit current submenu Show descriptions of general help Restore the previous BIOS settings for the current submenus Load the Optimized BIOS default settings for the current submenus Save all the changes and exit the BIOS Setup program - 54 • Main This setup page includes all the items in standard compatible BIOS. • Advanced This setup page includes all the items of AMI BIOS special enhanced features. (ex: Auto detect fan and temperature status, automatically configure hard disk parameters.) • Chipset This setup page includes all the submenu options for configuring the function of North Bridge and South Bridge. (ex: Auto detect fan and temperature status, automatically configure hard disk parameters.) • Security Change, set, or disable supervisor and user password. Configuration supervisor password allows you to restrict access to the system and BIOS Setup. A supervisor password allows you to make changes in BIOS Setup. A user password only allows you to view the BIOS settings but not to make changes. • Server Management Server additional features enabled/disabled setup menus. • Boot Options This setup page provides items for configuration of boot sequence. • Boot Manager This setup page provides configuration of boot up devices. • Exit Save all the changes made in the BIOS Setup program to the CMOS and exit BIOS Setup. (Pressing can also carry out this task.) Abandon all changes and the previous settings remain in effect. Pressing to the confirmation message will exit BIOS Setup. (Pressing can also carry out this task.) 2-1 The Main Menu Once you enter the BIOS Setup program, the Main Menu (as shown below) appears on the screen. Use arrow keys to move among the items and press to accept or enter other sub-menu. Main Menu Help The on-screen description of a highlighted setup option is displayed on the bottom line of the Main Menu. Submenu Help While in a submenu, press to display a help screen (General Help) of function keys available for the menu. Press to exit the help screen. Help for each item is in the Item Help block on the right side of the submenu. • When the system is not stable as usual, select the Load Default Values item to set your system to its defaults. • The BIOS Setup menus described in this chapter are for reference only and may differ by BIOS version. BIOS Version Display version number of the BIOS setup utility. Memory Determines how much total memory is present during the POST. System Date Set the date following the weekday-month-day- year format. System Time Set the system time following the hour-minute- second format. Access Level Display the current accessing level information. 2-2 Advanced Menu The Advanced menu display submenu options for configuring the function of various hardware components. Select a submenu item, then press Enter to access the related submenu screen. 2-2-1 PCI Configuration PCI Express Slot 1/2/3/4 Option ROM When enabled, This setting will initialize the device expansion ROM for the related PCI-E slot. Options available: Enabled/Disabled. Default setting is Enabled. Onboard LAN1/2 Controller Enable/Disable Onboard LAN controller . Options available: Enabled/Disabled. Default setting is Enabled. LAN1/2 Option ROM Enable/Disable onboard LAN1 device and initialize device expansion ROM. Options available: Enabled/Disabled. Default setting is Disabled. PERR Generation When this item is set to enabled, PCI bus parity error (PERR) is generated and is routed to NMI. Options available: Enabled/Disabled. Default setting is Disabled. SERR Generation When this item is set to enabled, PCI bus system error (S...
