Chapter 2 AMIBIOS Setup
59
Section 4
PCI/PnP Setup
Choose PCI/PnP Setup from the AMIBIOS Setup main menu. All PCI/PnP
Setup options are described in this section.
USB Function
Set this option to
Enabled
to enable the USB (universal serial bus). The
settings are
Disabled
or
Enabled
. The Optimal and Fail-Safe settings are
Disabled
.
USB KB/Mouse Legacy Support
Set this option for the USB to support older keyboard and
mouse operation. The settings are
Disabled, Keyboard, Auto
or
Keyb+Mouse
.
The Optimal and Fail-Safe settings are
Disabled
.
Port 64/60 Emulation
Set this option to
Enabled
to enable Port 64/60 emulation. The Optimal and
Fail-Safe settings are
Disabled.
Plug and Play-Aware OS
Set this option to
Yes
if the operating system in this computer follows
the Plug and Play specification. Windows 95 is PnP-aware. The settings are
Yes
or
No.
The default setting is
Yes
. The Optimal and Fail-Safe default
settings are
No
.
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 the VGA Palette Snoop bit is:
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 palette registers and the ISA VGA device palette
registers, and the palette registers of both devices can be identical.
This option must be set to
Enabled
if an ISA adapter card installed in the
system uses VGA palette snooping. The Optimal and Fail-Safe default settings
are
Disabled.
Cont’d
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