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Chapter 3
VL6
You can assign an IRQ for the PCI VGA or
Disabled
.
Assigned IRQ For 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! Two options are available: Enable or Disable.
INT Pin 1 Assignment ~ INT Pin 4 Assignment:
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. Which means, the system can specify the fixed IRQ number for the device
installed on the PCI slots (PCI slot 1 to PCI slot 5). 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.
Note
If you specify the IRQ in this item, then you cannot specify the same IRQ to the ISA bus,
otherwise, it will cause a hardware conflict.
This feature is for the operating system which will record and fix the PCI configuration
status, if you want to change it.
For the relations between the hardware layout of PIRQ (the signals from the VIA
VT82C686A chipset), INT# (means PCI slot IRQ signals) and devices, please refer to the
table below:
Signals
PCI slot 1
PCI slot 2
PCI slot 3
PCI slot 4
PCI slot 5
INT Pin 1 Assignment INT A
INT B
INT C
INT D
INT Pin 2 Assignment INT B
INT C
INT D
INT A
INT Pin 3 Assignment INT C
INT D
INT A
INT B
INT Pin 4 Assignment INT D
INT A
INT B
INT C
!
USB used INT D.
!
Each PCI slot has four INT#s (INT Pin 1 ~ INT Pin 4), and the AGP slot has two INT#
(INTA and INT B).
Содержание VL6
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