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If Auto is selected, AMIBIOS automatically determines the correct setting for
this option.
In the AMIBIOS for the EBM3x-PA CPV5000, this option forces IRQ 14 and
15 to a PCI slot on the PCI local bus. This is necessary to support non-
compliant PCI IDE adapter boards.
DMA channels
This option can be used to reserve a DMA channel for use by legacy ISA
adapter boards. The settings are: Disabled, DMA Ch1, DMA Ch 3, DMA Ch
5, DMA Ch 6, or DMA Ch 7.
ISA/PCI IRQ allocation
The following options specify the bus that the named interrupt request lines
(IRQs) are used on. These options allow you to specify IRQs for use by legacy
ISA adapter boards.
These options determine if AMIBIOS should remove an IRQ from the pool of
available IRQs passed to BIOS configurable devices. 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 PCI/PnP Setup options to remove the
IRQ by assigning the option to the ISA/EISA setting. Onboard I/O is
configurable by AMIBIOS. The IRQs used by onboard I/O are configured as
PCI/PnP. The settings are PCI/PnP or ISA/EISA.
Up to four IRQs can be allocated to the PCI BUS. The IRQs are allocated
according to PCI slot position and the capabilities of the PCI option board.
Assuming all IRQs are available to the PCI bus the order of allocation is as
follows: 11, 10, 9, 15, 5, 3, 7, 4, 12, 14.
IRQ3
IRQ4
IRQ5
IRQ7
IRQ9
IRQ10
IRQ11
WinBIOS Setup types
7-23
7
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