User`s manual

BIOS Setup 3-27
Figure 3-10. IRQ Resources Setup Screen Shot
 Back to PnP/PCI Configurations Setup Menu:
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 Video:
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 VIA 8235 arbiter allows a PCI initiator to
perform multiple back-to-back transactions on the PCI bus. The options are: 32, 64, 96, 128, 160, 192,
224, and 248 PCI Clocks. The default setting is 32 PCI Clocks.
PIRQ_0 Use IRQ No. ~PIRQ_3 Use IRQ No. :
Eleven options are available: Auto, 3, 4, 5, 7, 9, 10, 11, 12, 14, 15. Default setting is Auto. This item
allows the system to automatically specify the IRQ number for the device installed on PCI slots. This
means that the system can specify the fixed IRQ number for the device installed on the PCI slots (or
onboard PCI devices). This is a useful function for 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 or Windows
®
2000, you can simply specify the IRQ for the device installed on the new
computer to fit the original computer settings.
User’s Manual