PnP/PCI Options

The PnP/PCI Options menu allows you to specify the settings for your PCI devices. Selecting this option displays the following screen:

PnP/PCI Options

PCI IRQ Setting

 

 

[Auto]

 

INTA INTB INTC INTD

PCI Slot 1

[--]

[--]

[--]

[--]

PCI Slot 2

[--]

[--]

[--]

[--]

PCI Slot 3

[--]

[--] [--]

[--]

PCI IRQ Sharing

 

 

[Yes]

VGA Palette Snoop

 

 

[Disabled]

Graphics Aperture Size

 

 

[64 ] MB

Plug and Play OS

 

 

[Yes]

Reset Resource Assignments

 

 

[No ]

The following table describes the parameters found in this sub-menu. Settings in boldface are the default and suggested settings.

Parameter

Description

Options

 

 

 

PCI IRQ Setting

Allows you to automatically or manually configure

Auto or Manual

 

the Plug-and-Play (PnP) devices installed in your

 

 

system. Refer to your device manual for technical

 

 

information about the PCI card.

 

 

 

 

PCI Slot 1 / 2 / 3

Allows you to manually assign an interrupt for each

 

 

PCI device installed in your system. When the PCI

 

 

IRQ Settings is set to Auto, BIOS automatically

 

 

assigns the available IRQs to the PCI devices.

 

 

 

 

PCI IRQ Sharing

Allows you to assign the same IRQ to two different

Yes or No

 

devices.

 

 

 

 

VGA Palette Snoop

Enables the palette snooping feature (if you installed

Enabled or Disabled

 

more than one VGA card in the system) allowing

 

 

the control palette register (CPR) to manage and

 

 

update the VGA RAM DAC (Digital Analog

 

 

Converter, a color data storage) of each VGA card

 

 

installed in the system. The snooping process lets

 

 

the CPR send a signal to all the VGA cards so that

 

 

they can update their individual RAM DACs. The

 

 

signal goes through the cards continuously until all

 

 

RAM DACs data has been updated. This allows the

 

 

display of multiple images on the screen. Some

 

 

VGA cards have required settings for this feature.

 

 

Check your VGA card manual before setting this

 

 

parameter.

 

 

 

 

Graphics Aperture Size

This parameter determines the effective size of the

The lowest setting is 8 MB and the

 

graphics aperture. Graphics aperture is the address

highest is 256 MB.

 

range that the AGP video and the CPU use to

 

 

manage graphical objects.

 

 

 

 

Chapter 2

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Acer power sx/sxb/sc manual PnP/PCI Options, Inta Intb Intc Intd