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4-20
Chapter 4
The following figure shows you the screen of IRQ resources. Each item has two options: PCI
Device and Reserved. The default setting is PCI Device.
Figure 4-10. IRQ Resources Setup Screen Shot
PCI/VGA Palette Snoop:
This option allows the BIOS to preview VGA Status, and to modify the information delivered
from the Feature Connector of the VGA card to the MPEG Card. This option can solve the
display inversion to black after you have used the MPEG card.
Allocate IRQ to VGA :
Two options are available: Disabled or Enabled. The default setting is Enabled. Name the
interrupt request (IRQ) line assigned to the USB/VGA/ACPI (if any) on your system. Activity
of the selected IRQ always awakens the system. You can assign an IRQ for the PCI VGA or
Disabled.
Allocate IRQ to USB:
Two options are available: Disabled or Enabled. The default setting is Enabled. If you need
another IRQ to be freed up, you can choose to disable this item, and you can get an IRQ. But
®
in some situations in Windows
95 it may cause the USB port to malfunction or have other
problems!
PCI Latency Timer(CLK):
This option selects the controls for the amount of time that the ICH arbiter allows a PCI
initiator to perform multiple back-to-back transactions on the PCI bus.
PIRQ_0 Use IRQ No. ~PIRQ_7 Use IRQ No. :
This item allows the IRQ number for the device installed on PCI slots to be specified by the
system automatically or yiou can specify a fixed IRQ number. This is a useful function when
you want to fix the IRQ for a specific device. For example, if you want to move your hard
®
disk to another computer and don't want to re-install Windows
NT, then you can specify the
IRQ for the device installed on the new computer to fit the original computer settings.
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