MSI ATX Mainboard MS-6775 (v1.x) PNP/PCI Configurations, Plug and Play Aware O/S, ClearNVRAM

MS-6775 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.

Plug and Play Aware O/S

When set to Yes, BIOS will only initialize the PnP cards used for booting (VGA, IDE, SCSI). The rest of the cards will be initialized by the PnP operating system like Windows® 98, 2000 or ME. When set to No, BIOS will initialize all the PnP cards. Select Yes if the operating system is Plug & Play.

ClearNVRAM

The ESCD (Extended System Configuration Data) NVRAM (Non-volatile Random 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 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.

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