MSI 865PE User Guide - Page 63

Set DMAs to PnP or ISA, DMA Channel 0/1/3/5/6/7

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Page 63 highlights

MS-6728 ATX Mainboard Onboard I/O is configured by AMIBIOS. All IRQs used by 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 and PCI/PnP. Set DMAs to PnP or ISA Press 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 using. The settings determine if AMIBIOS should remove a DMA from the available DMAs passed to devices that are configurable by the system BIOS. The availableDMApool is determined byreading the ESCDNVRAM. If more DMAs must be removed from the pool, the end user can reserve the DMA by assigning an ISA/EISA setting to it. 3-20

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3-20
MS-6728 ATX Mainboard
Onboard I/O is configured by AMIBIOS. All IRQs used by 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
and
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 using.
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 ESCDNVRAM.
If more DMAs must be removed from the pool, the end user can reserve
the DMA by assigning an
ISA/EISA
setting to it.