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Chapter 4
4-18
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 communi-
cating 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. W hen 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.
Resource Controlled By
The Award Plug and Play BIOS has the capacity to automatically configure all of the
boot and Plug and Play compatible devices. However, this capability means abso-
lutely nothing unless you are using a Plug and Play operating system such as W in-
dows
®
95/98. If you set this field to [Manual], choose specific resources by going into
each of the sub menu that follows this field (a sub menu is preceded by a
“
}
”
). The
settings are: [Auto (ESCD)], [Manual].
IRQ Resources
The items are adjustable only when Resources Controlled By is set to [Manual].
Press <Enter> and you will enter the sub-menu of the items. IRQ Resources list IRQ
3/4/5/7/9/10/11/12/14/15 for users to set each IRQ a type depending on the type of
device using the IRQ. Settings are:
[PCI Device] For Plug & Play compatible devices designed for PCI bus
architecture.
[Reserved] The IRQ will be reserved for further request.