Product guide

58
Integrated Peripheral Configuration Submenu
Feature Choices Description
COM1 Disabled
Enabled
Auto Auto forces BIOS to configure the
port.
OS Controlled OS Controlled Forces the OS to
configure the port.
Base I/O 3F8 Selects the base I/O address for
Address 2F8 COM 1.
3E8
2E8
Interrupt IRQ 3
IRQ 4 Selects the IRQ for COM1.
COM2 Disabled
Enabled
Auto Auto forces BIOS to configure the
port.
PnP OS PnP OS forces OS configures the
port.
Base I/O 3F8 Selects the base I/O address for
Address 2F8 COM2.
3E8
2E8
Interrupt IRQ 3 Selects the IRQ for COM2.
IRQ 4
Feature Choices Description
Parallel Port Disabled
Enabled
Auto Auto forces BIOS to configure the
port.
PnP OS PnP OS forces OS configures the
port.
Mode Output only
Bi-directional
EPP
ECP Selects parallel port mode.
Base I/O 378 Selects the base I/O address for
Address 278 LPT port.
Interrupt IRQ 5
IRQ 7 Selects the IRQ for LPT port.
DMA channel DMA 1
DMA 3 Selects the DMA for LPT port
(only used for ECP mode).
Floppy disk Disabled
controller Enabled Enables onboard diskette
controller.
Advanced Chipset Control
Feature Choices Description
640-768K Enabled Enabled forwards ISA Master
Memory Region and DMA cycles to the PCI bus.
Disabled Disabled forwards these cycles
to memory.
Delayed Enabled Enables the delayed transaction
Transaction Disabled mechanism when the PIIX4e is
the target of a PCI transaction.
Feature Choices Description
Passive Enabled Enables the passive release
Release Disabled mechanism on the PHOLD#
signal when the PIIX4 is a PCI
Master.
Chapter Four Configuration Software and Utilities