Ampro Corporation LITTLE BOARD P5X - Manual (Page 80)

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Setup
Many options provided on the Little Board/P5x are controlled by the Setup function. The
parameters are displayed on several screens, selected from a main menu screen. To configure the
board, you modify the fields in these screens and save the results in the on-board configuration
memory.
The configuration memory consists of portions of the CMOS RAM in the battery-backed real-time
clock chip and an Ampro-unique configuration EEPROM. To enhance embedded-system reliability,
the contents of the EEPROM mirror the contents of the CMOS memory. The EEPROM retains your
configuration information even if the clock’s backup battery fails.
The Setup information is retrieved from configuration memory when the board is powered up or
when it is rebooted with a CTL-ALT-DEL key combination. Changes made to the Setup parameters
(with the exception of the real-time clock time and date settings) do not take effect until the system
is rebooted.
The Setup program is located in the ROM BIOS. To access Setup, press DEL while the computer is
in the Power On Self Test (POST), just prior to booting. This is called hot key access. The screen will
display a message indicating when entering DEL will access Setup.
Some Setup fields, for example, the amount of DRAM memory installed on the board, are read-only
fields, intended for informational purposes only.
The following figures are samples of what the BIOS setup pages look like. They may not exactly
match your screen.
Setup Help
You can access help information for many of the Setup options by pressing F1. The information is
displayed in a popup window. Some help screens list all the available option settings, while others
display additional information.
Table 2– 41 summarizes the choices found on each Setup page.
Table 2– 41. Functions on Each Setup Page
Page Menu Name Functions
1 Main Menu
Select various Setup screens
Load Setup defaults
Save and/or Exit Setup
2 Standard CMOS Setup
Set date and time
Enter IDE hard disk parameters
Set type and number of floppy disks
Set default video state
Configure BIOS error handling
Displays amount of installed DRAM memory