DFI P5XV3, User Manual

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2
Hardware Installation
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2.2.4.1 Assigning an IRQ for an Expansion Card
If your expansion card need an IRQ, make sure to assign an IRQ
that has not been used yet. Refer to the expansion card’s manual
to determine whether an IRQ is needed.
The system has a total of 16 IRQs but most of them have been
used by different components on the system leaving only 6 free
IRQs available for expansion cards.
There are 2 types of ISA cards: Legacy (configured manually using
jumpers) and PnP (IRQs are assigned automatically). When both
types of cards exist, assign an IRQ for the Legacy cards first. The
PnP card will then automatically be assigned an IRQ that has not
been used by the Legacy cards.
After all ISA cards have been assigned an IRQ, the PCI cards will
then be automatically assigned an IRQ.
Refer to the “Resources Controlled By” field in the PNP/PCI
Configuration setup of the Award BIOS (Chapter 3) for more
information.
To view the used and free IRQs, run Microsoft’s Diagnostic,
MSD.EXE. MSD.EXE is in the Windows directory. If you are using
Windows
 95, double-click “My Computer” in the Windows  95
desktop. In “My Computer”, select “Control Panel”. In “Control
Panel”, select “System”. In “System”, select “Device Manager”. In
“Device Manager”, select a device to view the interrupt and IRQ
used.
2.2.4.2 Assigning a DMA Channel for an Expansion Card
The same method (described above) is applied when assigning a
DMA channel to an expansion card. Refer to the “Resources
Controlled By” field in the PNP/PCI Configuration setup of the
Award BIOS (Chapter 3) for more information.