Chapter 2 AMIBIOS Setup
63
PCI/PnP Setup,
Continued
The fourth heading is:
Bus IRQ Resource Owner
IRQ3
IRQ4
IRQ5
IRQ7
IRQ9
IRQ10
IRQ11
IRQ12
IRQ14
IRQ15
These options specify the bus that the specified IRQ line is used on. These
options allow you to reserve IRQs for legacy ISA adapter cards. These options
determine if AMIBIOS should remove an IRQ from the pool of available IRQs
passed to devices that are configurable by the system BIOS. The available IRQ
pool is determined by reading the ESCD NVRAM. If more IRQs must be
removed from the pool, the end user can use these options to reserve the IRQ
by assigning an
ISA
setting to it. Onboard I/O is configured by AMIBIOS. All
IRQs used by onboard I/O are configured as
PCI/PnP.
IRQ14 and 15 will not
be available if the onboard Triton 2 PCI IDE is enabled. If all IRQs are set to
ISA
and IRQ14 and 15 are allocated to the onboard PCI IDE, IRQ9 will still be
available for PCI and PnP devices, because at least one IRQ must be available
for PCI and PnP devices.
The settings are
Auto, Primary Bus, Secondary Bus1, Secondary Bus2, PnP,
PCI,
or
ISA
. The Optimal and Fail-Safe default settings are
Auto
for IRQ5, 9,
10, and 11,
PnP
for IRQ 3, 4, 7, and 12, and
PCI
for IRQ 14, and 15.
Cont’d
Содержание MegaPlex II
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