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Chapter 4
Reset Configuration Data
You should leave this field Disabled unless you have installed a new
add-on and the system reconfiguration has caused such a serious
conflict that the operating system cannot boot. If this occurs, select
Enabled to reset the Extended System Configuration Data when you
exit Setup.
IRQ-n assigned to
When resources are controlled manually, assign each system interrupt
as one of the following types, depending on the type of device using the
interrupt.
Legacy ISA
Choose this type for devices compliant with the original PC
AT BUS specification.
PCI/ISA PnP
Choose this type for devices compliant with the Plug and Play
standard, whether designed for the PCI or ISA BUS
architecture.
DMA-n assigned to
Legacy ISA
Choose this type for devices compliant with the original PC
AT BUS specification.
PCI/ISA PnP
Choose this type for devices compliant with the Plug and Play
standard, whether designed for the PCI or ISA BUS
architecture.
PCI IDE IRQ Map To:
This field lets you select PCI IDE IRQ mapping or PC AT (ISA)
interrupts. If your system does not have one or two PCI IDE connec-
tors on the system board, select values according to the type of IDE
interfaces installed in your system (choose the ISA value if you have
ISA interfaces; choose PCI-AUTO if you have PCI interfaces).
Standard ISA interrupts for IDE channels are IRQ-14 for primary
channels and IRQ-15 for secondary channels. If you select ISA for this
field, the Primary and Secondary IDE INT# fields will not be visible.
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