Acer 500L manual PCI IRQ Sharing, VGA Palette Snoop

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PCI Slots

When you set the PCI IRQ Setting parameter to Auto, these parameters specify the auto-assigned interrupt for each of the PCI devices. If you set the PCI IRQ Setting parameter to Manual, you need to specify the interrupt that you want to assign for each PCI device installed in your system.

AGP

This item shows the assigned interrupt for the onboard accelerated graphics port (AGP) controller.

PCI IRQ Sharing

Setting this parameter to Yes allows you to assign the same IRQ to two different devices. To disable the feature, select No.

If there are no IRQs available to assign for the remaining device function, we recommend that you enable this parameter.

VGA Palette Snoop

This parameter permits you to use the palette snooping feature if you installed more than one VGA card in the system.

The VGA palette snoop function allows 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 DAC data has been updated. This allows the display of multiple images on the screen.

Chapter 3 BIOS Utility

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Contents AcerAltos 500L Copyright Important Safety Instructions Page Page FCC Class B Radio Frequency Interference Statement Getting Started Conventions Table of Contents Bios Utility Page Xii Standalone System System HousingFront Panel FeaturesRear Panel Internal Structure Opening the Housing Panels Left Panel Inch Floppy Drive Installing Disk DrivesInch Drives Hard Disk Drives Installing Expansion Cards System Housing Page System Board Major Components System Board Layout Jumper and Connector Locations Jumpers and ConnectorsConnector Functions Jumper SettingsPower switch ESD Precautions Attaching the Processor Fan Sink Installing the Pentium II ProcessorSystem Board AcerAltos 500L User’s Guide Installing a Pentium II Processor AcerAltos 500L User’s Guide Removing a Pentium II Processor AcerAltos 500L User’s Guide Memory Configurations Memory UpgradeInstalling a Dimm Removing a Dimm Reconfiguring the System System Error Messages Error MessagesSoftware Error Messages Mmmmssssooo Wxxxx System Board Correcting Error Conditions Bios Utility Setup Utility Entering SetupBios Utility System Information External Cache ProcessorProcessor Speed Internal Cache SizeIDE Secondary Channel Slave IDE Primary Channel MasterIDE Primary Channel Slave IDE Secondary Channel MasterPS/2 Mouse Serial PortParallel Port Main Board ID Product InformationProduct Name System S/NMain Board S/N System Bios VersionDMI Bios Version Floppy Drives Disk DrivesIDE Primary Channel Master LS-120 Drive Compatible AsIDE Drives IDE Secondary Channel Slave IDE Primary Channel SlaveIDE Secondary Channel Master Enhanced IDE Features Hard Disk Block Mode Bios Utility Base Address Onboard PeripheralsSerial Ports 1 3BCh 378h Operation ModeEPP Onboard Device SettingsUSB Host Controller Floppy Disk ControllerIDE Controller PS/2 Mouse ControllerSMBus Interrupt IRQ9 IDE Hard Disk Standby Timer Power ManagementPower Management Mode System Wake-up Event Power Switch 4 secSystem Sleep Timer Modem Ring IndicatorBoot Sequence Boot OptionsFirst Hard Disk Drive Fast BootSilent Boot Memory Test Num Lock After BootConfiguration Table Boot from LANDesk Service AgentDate Date and TimeTime System Security Setup PasswordTo set or change a Password Set or Change Password To remove your Setup Password To bypass Setup Password Power-on PasswordDisk Drive Control Power-on PasswordBios Utility Memory/Cache Options Advanced OptionsMemory at 15MB-16MB Reserved for Internal Cache CPU CacheExternal Cache PnP/PCI Options Memory Parity ModePCI IRQ Setting VGA Palette Snoop PCI IRQ SharingPlug and Play OS Reset Resource AssignmentsCPU Frequency Graphics Aperture SizeProcessor Speed Bus FrequencyCPU Multiple Load Default Settings Abort Settings Change Exit Setup SCSI/VGA Combo Card Page LCD Module Event Log List