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ASUS E2938 User Manual

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4-6
Chapter 4: BIOS setup
4.5.6 
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 can cause the system to malfunction.
Select Screen
    Select Item
+-   Change Option
F1   General Help
F10   Save and Exit
ESC   Exit
v02.58 (C)Copyright 1985-2006, American Megatrends, Inc.
Advanced PCI/PnP Settings
WARNING: Setting wrong values in below sections
         may cause system to malfunction.
Plug And Play O/S 
 
[No]
PCI Latency Timer 
 
[64]
Allocate IRQ to PCI VGA   
[Yes]
Palette Snooping 
 
[Disabled]
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]
NO: lets the BIOS 
configure all the 
devices in the system.
YES: lets the 
operating system 
configure Plug and Play 
(PnP) devices not 
required for boot if 
your system has a Plug 
and Play operating 
system.
BIOS SETUP UTILITY
 
 
 Advanced
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 install a Plug and Play operating system, the operating system 
configures the Plug and 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: [Yes] [No]
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. Configuration options: [Disabled] [Enabled]
IRQ-xx assigned to [PCI Device]
When set to [PCI Device], 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]