Acrosser AR-B8172 User Manual
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AR-B8172 User Manual
IRQ
This item can select the IRQ with Available or Reserved. And the default of IRQ3, 4 are Reserved
and others are Available. When you set available, the specified IRQ is to be used by a PCI/PnP
device; as you set reserved, the IRQ will reserved for legacy ISA devices.
Interrupt Option
Description
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
IRQ8
Available
This setting allows the specified IRQ to be used by a PCI/PnP
device. This is the default setting.
IRQ9
IRQ10
IRQ11
IRQ12
IRQ13
IRQ14
IRQ15
Reserved
This setting allows the specified IRQ to be used by a legacy ISA
device.
DMA Channel
This item can select the DMA Channel for Available or Reserved. When set to Available the
specified DMA is available for used by PCI/PnP devices; when set to reserved, the specified DMA
to be used by a legacy ISA device.
DMA Channel
Option
Description
DMA Channel 0
DMA Channel 1
DMA Channel 3
Available
This setting allows the specified DMA to be used by PCI/PnP
device. It
is
default setting.
DMA Channel 5
DMA Channel 6
DMA Channel 7
Reserved
This setting allows the specified DMA to be used by a legacy ISA
device.
Reserved Memory Size
Set this value to allow the system to reserve memory that is used by ISA devices. The optimal and
Fail-Safe default setting is Disabled.
Option
Description
Disabled Set this value to prevent BIOS from reserving memory to ISA devices.
16K
Set this value to allow the system to reserve 16K of the system memory to the ISA devices.
32K
Set this value to allow the system to reserve 32K of the system memory to the ISA devices.
64K
Set this value to allow the system to reserve 64K of the system memory to the ISA devices.
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