CHAPTER 3
AMI
®
BIOS USERS GUIDE
3-17
Description of the item on screen follows:
Plug and Play Aware O/S
Set this option to Yes if the operating system in this computer is
aware of and follows the Plug and Play specification. The settings are Yes or
No. The default setting No.
Clear NVRAM
During Yes, this will clear NVRAM data on every boot.
PCI Latency Timer
This option specifies the latency timings (in PCI clocks) for all PCI
devices on the PCI bus. The settings are 32, 64, 96, 128, 160, 192, 224 or 248.
The Setup and BIOS default settings is 64.
Primary Graphics Adapter
This option is for selecting which VGA card is to be your primary
display graphics adapter.
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 ISA)
and the bit settings are:
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
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 an ISA adapter card requires
VGA palette snooping. The settings are Enabled or Disabled. The default
setting is Disabled.
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