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Pentium II Motherboards AMI BIOS Setup -Page
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PCI/PnP Setup
Choose PCI/Plug and Play Setup from the AMIBIOS Setup screen to display the PCI
and Plug and Play Setup options, described below.
Plug and Play Aware O/S Set this option to Yes to inform AMIBIOS that the operating system can
handle plug and Play (PnP) devices. The settings are No or Yes. The Optimal and Fail-
Safe default settings are No.
PCI Latency Timer (PCI Clocks) This option specifies the latency timings (in PCI clocks) for PCI
devices installed in the PCI expansion slots. The settings are 32, 64, 96, 128, 160, 192,
224, or 248. The Optimal and Fail-Safe default settings are 64.
PCI VGA Palette Snoop When this option is set to Enabled, multiple VGA devices operating on
different buses can handle data from the CPU on each set of palette registers on every
video device. Bit 5 of the command register in the PCI device configuration space is the
VGA Palette Snoop bit (0 is disabled). For example: if there are two VGA devices in the
computer (one PCI and one ISA) and:
VGA Palette
Snoop Bit
Action
Disabled
Data read and written by the CPU is only directed to the
PCI VGA device's palette registers.
Enabled
Data read and written by the CPU is directed to the both
the PCI VGA device's palette registers and the ISA VGA
device palette registers, permitting the palette registers of
both devices to be identical.
This option must be set to Enabled if any ISA adapter card installed in the system
requires VGA palette snooping. The Optimal and Fail-Safe default settings are
Disabled.
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