BIOS Manual
5-16
PCI VGA Palette Snoop
The settings for this option are
Disabled
or
Enabled.
When 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 this option is disabled, data read and
written by the CPU is only directed to the PCI VGA device's palette registers.
If enabled, data read and written by the CPU is directed to both the PCI VGA
device's palette registers and the ISA VGA palette registers. This will permit
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.
PCI IDE Busmaster
The settings for this option are
Disabled
or
Enabled
. Set to
Enabled
to
specify the IDE Controller on the PCI bus has bus mastering capabilities.
Under Windows 95, you should set this option to
Disabled
and install the
Bus Mastering driver.
Offboard PCI IDE Card
This option specifies if an offboard PCI IDE controller adapter card is installed
in the computer. The PCI expansion slot on the motherboard where the
offboard PCI IDE controller is installed must be specified. If an offboard PCI
IDE controller is used, the onboard IDE controller is automatically disabled.
The settings are
Auto
(AMIBIOS automatically determines where the offboard
PCI IDE controller adapter card is installed),
Slot 1
,
Slot 2
,
Slot 3
,
Slot 4,
Slot 5
or
Slot 6
.
This option forces IRQ14 and IRQ15 to a PCI slot on the PCI local bus. This
is necessary to support non-compliant ISA IDE controller adapter cards. If an
offboard PCI IDE controller adapter card is installed in the computer, you
must also set the Offboard PCI IDE Primary IRQ and Offboard PCI IDE
Secondary IRQ options.
Offboard PCI IDE Primary IRQ
Offboard PCI IDE Secondary IRQ
These options specify the PCI interrupt used by the primary (or secondary)
IDE channel on the offboard PCI IDE controller. The settings are
Disabled
,
Hardwired
,
INTA
,
INTB
,
INTC
, or
INTD
.
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