Abit SG-71, User Manual

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Introducing the BIOS
User’s Manual
4-25
Legacy devices compliant with the original PC AT bus specification require a specific interrupt. PCI PnP
devices comply with the Plug and Play standard, whether designed for the PCI or legacy bus architecture.
Two options are available: Auto (ESCD) Manual. The default setting is Auto (ESCD) . The Award
Plug and Play BIOS has the capability to automatically configure all boot and Plug and Play compatible
devices. If you select Auto (ESCD), all of the interrupt request (IRQ) fields become unselectable, as the
BIOS automatically assigns them.
IRQ Resources:
If you have trouble in assigning the interrupt resources automatically, you can select Manual to set
which IRQis assigned to which PCI Device or Reserved it. See the screen shot below.IRQ Resources:
If you have trouble in assigning the interrupt resources automatically, you can select Manual to set
which IRQis assigned to which PCI device or reserve it. See the screen shot below.
Figure 4-7B. IRQ Resources Setup Menu
PCI /VGA Palette Snoop:
Two options are available: Disabled Enabled. The default setting is Disabled . 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 set the display inversion to black after you have used the
MPEG card.
Allocate IRQ to Video:
Two options are available: Disabled 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 either PCI or AGP VGA or Disabled .