MSI KT880 User Guide - Page 53

PNP/PCI Configurations

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MS-7047 ATX Mainboard PNP/PCI Configurations This section describes configuring the PCI bus system and PnP (Plug & Play) feature. PCI, or Peripheral Component 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 Random Access Memory) is where the BIOS stores resource information for both PNP and nonPNP 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 setting specifies which VGA card is your primary graphics adapter. Setting options are: [AGP] The system initializes the installed AGP card first. If an AGP card is not available, it will initialize the PCI VGA card. [PCI] The system initializes the installed PCI VGA card first. If a PCI VGA card is not available, it will initialize the AGP card. PCI Latency Timer This item controls how long each PCI device can hold the bus before another takes over. When set to higher values, every PCI device can conduct transactions for a longer time and thus improve the effective PCI bandwidth. For better PCI performance, you should set the item to higher values. Setting options: [32], [64], [96], [128], [160], [192], [224], [248]. 3-18

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MS-7047 ATX Mainboard
PNP/PCI Configurations
This section describes configuring the PCI bus system and PnP (Plug & Play) feature.
PCI, or
P
eripheral
C
omponent
I
nterconnect, 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 Random Ac-
cess 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 setting specifies which VGA card is your primary graphics adapter. Setting
options are:
[AGP]
The system initializes the installed AGP card first.
If an AGP card is
not available, it will initialize the PCI VGA card.
[PCI]
The system initializes the installed PCI VGA card first.
If a PCI VGA
card is not available, it will initialize the AGP card.
PCI Latency Timer
This item controls how long each PCI device can hold the bus before another takes
over. When set to higher values, every PCI device can conduct transactions for a
longer time and thus improve the effective PCI bandwidth. For better PCI performance,
you should set the item to higher values. Setting options: [32], [64], [96], [128], [160],
[192], [224], [248].