Chapter 3
Assign IRQ for VGA/USB
Set to Enabled allows BIOS to assign an IRQ to VGA card/USB device. Choose Disabled if you want to release the IRQ. The settings are: Enabled, Disabled.
Assign IRQ for ACPI
Selecting Auto allows BIOS to automatically assign an IRQ for SCI (System Control Interrupt) of ACPI spec. Settings are Auto, IRQ 9, IRQ10 and IRQ11.