Acer Veriton 3200 Veriton 3200 Service Guide - Page 49

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 PCI Slot 1 PCI Slot 2 PCI Slot 3 INTB INTC INTD 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. Parameter PCI IRQ Setting PCI Slot 1 PCI IRQ Sharing VGA Palette Snoop Description Options Select Auto to let BIOS automatically configure the plugand-play (PnP) devices installed in your system. Otherwise, select Manual. Note: Refer to your PCI card manual for technical information. Auto or Manual 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. User input Setting this parameter to Yes allows you to assign the same IRQ to two different devices. To disable the feature, select No. Note: If there are no IRQs available to assign for the remaining device function, we recommend that you enable this parameter. Yes or No 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 RAMDAC (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 RAMDACs. The signal goes through the cards continuously until all RAMDAC data has been updated. This allows the display of multiple images on the screen. Note: Some VGA cards have required settings for this feature. Check your VGA card manual before setting this parameter. Disabled or Enabled Chapter 2 42