Asus M2V-X - Manual (Page 80)

4-24 Chapter 4: BIOS Setup
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 [Available]
When set to [Available], the specific IRQ is free for PCI/PnP devices to
use. When set to [Reserved], the IRQ is reserved for legacy ISA devices.
Configuration options: [Available] [Reserved]