Peripheral Setup - American Megatrends Atlas PCI EISA User Manual

Peripheral Setup

The WinBIOS Setup options described in this section are selected by choosing the appropriate high-level
icon from the Peripheral Setup screen. Peripheral Setup is selected from the Setup section on the WinBIOS
Setup main menu (see page 11). All displayed icons are described in this section, although the screen
display is often all you need to understand how to set the option.
Programming Mode
The settings are Auto or Manual. When set to Auto, the BIOS automatically detects all adapter cards
installed in the system and configures the onboard I/O (serial ports, parallel ports, floppy controllers, and
IDE controller) automatically. All other Peripheral Setup option settings are ignored. Any serial port,
parallel port, floppy controller, or IDE (Integrated Drive Electronics) controller on an adapter card in an
expansion slot is configured before onboard I/O. If Auto is selected, the BIOS also attempts to avoid IRQ
conflicts.
If the offboard serial ports are configured to specific starting I/O ports via jumper settings, the BIOS will
configure the onboard serial ports to avoid conflicts. For example, if the default serial port starting I/O ports
(serial port1 - 3F8h, serial port2 - 2F8h, serial port3 - 3E8h, serial port4 - 2E8h) are used, the following
configurations are possible:
If there are...
two offboard serial ports
two offboard serial ports
one offboard serial port
one offboard serial port
If Manual is selected, the settings chosen by the end user in Peripheral Setup apply. WinBIOS reports any
I/O conflicts after displaying the BIOS Configuration Summary Screen, but only if Manual is chosen.
Chapter 6 WinBIOS Setup
26
the ports are configured
as...
3E8h and 2F8h
3F8h and 3E8h
2F8h
3F8h
and the two onboard serial ports
are configured as...
3E8h and 2E8h
3F8h and Disabled
3F8h and Disabled
2F8h and Disabled