3-22
MS-6580 ATX Mainboard
onboard I/O are configured as PCI/PnP. If all IRQs are set to ISA/EISA,
and IRQ 14/15 are allocated to the onboard PCI IDE, IRQ 9 will still be
available for PCI and PnP devices. Available settings: ISA/EISA, PCI/
PnP.
Set DMAs to PnP or ISA
Press <Enter> to enter the sub-menu and the following screen appears:
DMA Channel 0/1/3/5/6/7
These items specify the bus that the system DMA (Direct Memory Access)
channel is used.
The settings determine if AMIBIOS should remove a DMA from the
available DMAs passed to devices that are configurable by the system
BIOS. The available DMA pool is determined by reading the ESCD
NVRAM. If more DMAs must be removed from the pool, the end user
can reserve the DMA by assigning an ISA/EISA setting to it.
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