VIA 693/693A Twin Processor Mainboard
AWARD BIOS SETUP
4-18
It is very simple to tell the difference. If you are going to disable the IRQ on the
USB port, check whether is any device connected to the USB port. If you can not
find any device, you may feel free to disable the IRQ on the USB port and have the
IRQ used by other device.
As for VGA adapter, it will be a little difficult. You may try to find whether your
VGA card requires the IRQ signal or not. If you can not find the information from
the user’s manual of your VGA card. You may use the following information to
make your choice:
1.
Most VGA cards do not need to have the IRQ signal.
2.
If you can not find the feature connector on your VGA card, than it is quite
possible that your VGA card does not need the IRQ signal.
3.
If your VGA card has the feature connector on the VGA card but it has
nothing connected to it. In this case, you still may have the IRQ disabled.
4.
If you have another add on card like video capture card which is connected
to the feature connector on the VGA card, In this case, you can not disable
the IRQ signal because the IRQ signal will be connected to the video
capture card.
Note : No matter what is defined in the “Resources Controlled By” field (“Manual” or
“Auto”), the system BIOS will always assign IRQ resources to PCI devices
from the highest one first ( ie. IRQ15, 14, 13 …) while assign IRQ resources to
ISA PnP devices from the lowest one first ( ie. IRQ3,4,5 .. ).
