MSI MS-6566 - Manual (Page 58)

AMI BIOS Setup
3-17
PNP/PCI Configurations
This section describes configuring the PCI bus system and PnP (Plug & Play)
feature. PCI, or Personal Computer Interconnect, is a system which allows I/O
de vice s to op erat e at sp eeds nea ring th e sp eed the CPU itself use s wh en
communicating with its special components. This section covers some very
technical items and it is strongly recommended that onl y experienced users
should make any changes to the default settings.
Clear ESCD
The ESCD (Extended System Configuration Data) NVRAM (Non-volatile Ran-
dom Access Memory) is where the BIOS stores resource information for both
PNP and non-PNP devices in a bit string format. When the item is set to Yes, the
system will reset ESCD NVRAM right after the system is booted up and then
set the setting of the item back to No automatically.
PCI VGA Palette Snoop
When set to Enabled, multiple VGA devices operating on different buses can
han dle d ata from the C PU on eac h set of p alet te re giste rs on eve ry vi deo
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: