ASUS P4S800-MX motherboard user guide
2-19
2.4.5 PCI PnP
The PCI PnP menu items allow you to change the advanced settings for PCI/PnP
devices. The menu includes setting IRQ and DMA channel resources for either
PCI/PnP or legacy ISA devices, and setting the memory size block for legacy ISA
devices.
Take caution when changing the settings of the PCI PnP menu items.
Incorrect field values may cause the system to malfunction.
Advanced PCI/PnP Settings
WARNING: Setting wrong values in below sections
may cause the system to malfunction.
Plug And Play O/S
[No]
PCI Latency Timer
[64]
Allocate IRQ to PCI VGA
[Yes]
Palette Snooping
[Disabled]
PCI IDE BusMaster
[Enabled]
IRQ-3 assigned to
[PCI Device]
IRQ-4 assigned to
[PCI Device]
IRQ-5 assigned to
[PCI Device]
IRQ-7 assigned to
[PCI Device]
IRQ-9 assigned to
[PCI Device]
IRQ-10 assigned to
[PCI Device]
IRQ-11 assigned to
[PCI Device]
IRQ-14 assigned to
[PCI Device]
IRQ-15 assigned to
[PCI Device]
Plug and Play O/S [No]
When set to [No], BIOS configures all the devices in the system. When set to [Yes]
and if you installed a Plug & Play operating system, the operating system
configures the Plug & Play devices not required for boot.
Configuration options: [No] [Yes]
PCI Latency Timer [64]
Allows you to select the value in units of PCI clocks for the PCI device latency
timer register. Configuration options: [32] [64] [96] [128] [160] [192] [224] [248]
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: [No] [Yes]
Palette Snooping [Disabled]
When set to [Enabled], the palette 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]
PCI IDE BusMaster [Enabled]
Allows BIOS to use PCI bus mastering when reading/writing to IDE devices.
Configuration options: [Disabled] [Enabled]