Pcipnp – MSI Fuzzy RS690E User Manual

Page 49

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3-15

BIOS Setup

PCIPnP

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 NVRAM

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. Whent 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.

Plug and Play 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.

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.

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