Asus K8U-X - Socket 754 Motherboard User Manual page 59

Allocate IRQ to PCI VGA [Yes]
When set to [Yes], BIOS assigns an IRQ to PCI VGA card if the card
requests for an IRQ. When set to [No], BIOS does not assign an IRQ to
the PCI VGA card even if requested. Configuration options: [Yes] [No]
Palette Snooping [Disabled]
When set to [Enabled], the pallete snooping feature informs the PCI
devices that an ISA graphics device is installed in the system so that the
latter can function correctly. Setting to [Disabled] deactivates this feature.
Configuration options: [Disabled] [Enabled].
IRQ-xx assigned to [PCI Device]
When set to [Available], the specific IRQ is free for use of PCI/PnP
devices. When set to [Reserved], the IRQ is reserved for legacy ISA
devices. Configuration options: [PCI Device] [Reserved].
ASUS K8U-X Motherboard 2-23