Pci Slots; Pci Irq Sharing; Vga Palette Snoop - Acer Power User Manual

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. The default setting is Yes.

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 default setting is Disabled.
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.
AcerPower Minitower (M11E/IDCATX-2) User's Guide
If there are no IRQs available to assign for the
remaining device function, we recommend that
you enable this parameter.
Some VGA cards have required settings for this
feature. Check your VGA card manual before
setting this parameter.