User`s guide

MegaRUM II PCI Motherboard User’s Guide
60
PCI/PnP Setup, Continued
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 PCI, Secondary PCI, or ISA.
The Optimal and Fail-Safe default settings are Auto.
DMA Channel 0
DMA Channel 1
DMA Channel 3
DMA Channel 5
DMA Channel 6
DMA Channel 7These options allow you to specify the bus type used by
each DMA channel. The settings are PnP or ISA. The
Optimal and Fail-Safe default settings are PnP.
Cont’d