User`s guide

Serverboard Manual
36
BIOS
Setup
i/o deviCe ConFiguration submenu
The CPU communicates with external devices such as printers through devices called
Input/Output (I/O) ports such as serial and parallel ports. These I/O devices require the use
of system resources such as I/O addresses and interrupt lines. If these devices are Plug
and Play, either the BIOS can allocate the devices during POST, or the operating system
can do it. If the I/O devices are not Plug and Play, they may require manually setting them
in Setup.
On some systems, the chipset manages the communication devices. Other systems have,
instead, a separate I/O chip on the motherboard for configuring and managing these
devices.
This submenu allows you to control the configuration settings for the I/O ports. Select “I/O
Device Configuration” on the Advanced Menu to display this menu and specify how you
want to configure these I/O Devices:
PhoenixBIOS Setup Utility
Advanced
I/O Device Configuration Item Specific Help
Serial Port A: [Enabled]
Base I/O address: [3F8]
Interrupt: [IRQ4]
Serial Port B: [Enabled]
Base I/O address: [2F8]
Interrupt: [IRQ3]
Parallel Port: [Enable]
Mode: [ECP]
Base I/O address: [378]
Interrupt: [IRQ5]
DMA channel: [DMA 1]
Floppy disk controller: [Enabled]
Floppy check: [Disable]
PS/2 Mouse: [Enabled]
‘Disabled’
prevents any
installed PS/
2 mouse from
functioning, but
frees up
IRQ 12. ‘Enabled’
forces the PS/
2 mouse port
to be enabled
regardless if a
mouse is present.
‘Auto Detect’
will enable the
PS/2 mouse only
if present. ‘OS
Controlled’ only
displayed if the
OS controls the
mouse.
F1 Help Select Item –/+ Change Values F9 Setup Defaults
ESC Exit Select Menu Enter Select
»
Submenu F10 Save and Exit