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PCI Slot4 IRQ Priority
These options specify the IRQ priority for PCI devices installed in the PCI expansion slots. The
settings are Auto, (IRQ) 3, 4, 5, 7, 9, 10, and 11, in priority order.
DMA Channel 0
DMA Channel 1
DMA Channel 3
DMA Channel 5
DMA Channel 6
DMA Channel 7
These options allow you to specify the bus type used by each DMA channel. The settings are PnP
or ISA/EISA .
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/EISA setting to it. Onboard I/O is configured by AMIBIOS. All IRQs used by onboard I/O are
configured as PCI/PnP. IRQ12 only appears if the Mouse Support option in Advanced Setup is set
to Disabled. IRQ14 and 15 will not be available if the onboard PCI IDE is enabled. If all IRQs are
set to ISA/EISA 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 ISA/EISA or PCI/PnP