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4.10 PnP / PCI Configuration Setup
This section describes configuring the PCI bus system. PCI, or
P
ersonal
C
omputer
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 own
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.
PNP OS Installed
Select Yes if the system operating environment is Plug-and-Play aware
(e.g.,Windows 95).
The Choice: Yes and No.
Resource Controlled by
The Award Plug and Play BIOS can automatically configure all the boot and Plug
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and Play-compatible devices. If you select Auto, all the interrupt request (IRQ)
and DMA assignment fields disappear, as the BIOS automatically assigns them.
The choice:
Auto
and Manual.
Reset Configuration Data
Normally, you leave this field Disabled. Select Enabled to reset Extended System
Configuration Data (ESCD) when you exit Setup if you have installed a new add-
on and the system reconfiguration has caused such a serious conflict that the
operating system cannot boot.
The choice:
Enabled
and
Disabled
.
IRQ n Assigned to
When resources are controlled manually, assign each system interrupt as one of
the following types, depending on the type of device using the interrupt:
Legacy ISA Devices compliant with the original PC AT bus specification,
requiring a specific interrupt (such as IRQ4 for serial port 1). PCI/ISA PnP
Devices compliant with the Plug and Play standard, whether designed for PCI or
ISA bus architecture.
DMA n Assigned to
When resources are controlled manually, assign each system DMA channel as
one of the following types, depending on the type of device using the interrupt:
Legacy ISA Devices compliant with the original PC AT bus specification,
requiring a specific DMA channel
PCI/ISA PnP Devices compliant with the Plug and Play standard, whether
designed for PCI or ISA bus architecture.
