Asus M3A78-EH User Manual Page 78

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2-28 Chapter 2: BIOS setup
2.4.6 PCIPnP
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
eld values can cause the system to malfunction.
Plug and Play O/S [No]
When set to [No], BIOS congures all the devices in the system. When set to
[Yes] and if you install a Plug and Play operating system, the operating system
congures the Plug and Play devices not required for boot.
Conguration 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. Conguration 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. Conguration options: [No] [Yes]
Palette Snooping [Disabled]
When set to [Enabled], the palete snooping feature informs the PCI devices that
an ISA graphics device is installed in the system so that the latter can function
correctly. Conguration options: [Disabled] [Enabled]
Select Screen
Select Item
+- Change Option
F1 General Help
F10 Save and Exit
ESC Exit
v02.61 (C)Copyright 1985-2008, American Megatrends, Inc.
BIOS SETUP UTILITY
Advanced
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
congure all the
devices in the
system.
Yes: lets the
operating system
congure Plug and
Play (PnP) devices
not required for
boot if your system
has a Plug and Play
operating system.
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