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BIOS Manual
PCI/Plug and Play Setup
Plug and Play-Aware O/S
The settings for this option are No or Yes . Set this option to Yes if the
operating system in the computer is aware of and follows the Plug and Play
specification. AMIBIOS only detects and enables PnP ISA adapter cards
that are required for system boot. Currently, only Windows 95 is PnP-Aware.
Set this option to No if the operating system (such as DOS, OS/2, Windows
3.x) does not use PnP. You must set this option correctly. Otherwise, PnP-
aware adapter cards installed in the computer will not be configured properly.
PCI Latency Timer (PCI Clocks)
This option specifies the latency timings in PCI clocks for all PCI devices.
The settings are 32 , 64 , 96 , 128 , 160 , 192 , 224 , or 248 .
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 .
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