Pnp/Pci Configurations - MSI 645E Max-C Manual

Chapter 3

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
devices to operate at speeds nearing the speed the CPU itself uses when
communicating with its special components. This section covers some very
technical items and it is strongly recommended that only 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.
Primary Graphics Adapter
This item specifies which VGA card is your primary graphics adapter. Settings:
PCI and AGP.
PCI VGA Palette Snoop
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
3-16