Chapter 2
BIOS Setup
2-27
Reset Configuration Data
The system BIOS supports the PnP feature which requires the system to record
which resources are assigned and protects resources from conflict. Every
peripheral device has a node, which is called ESCD. This node records which
resources are assigned to it. The system needs to record and update ESCD to the
memory locations. These locations (4K) are reserved in the system BIOS. If the
Disabled (default) option is chosen, the system‘s ESCD will update only when the
new configuration varies from the last one. If the Enabled option is chosen, the
system is forced to update ESCDs and then is automatically set to the “Disabled”
mode.
The above settings will be shown on the screen only if “Manual” is chosen for the
resources controlled by function.
Legacy is the term, which signifies that a resource is assigned to the ISA Bus and
provides non-PnP ISA add-on cards. PCI / ISA PnP signifies that a resource is
assigned to the PCI Bus or provides for ISA PnP add-on cards and peripherals.
The Choices: Disabled
(default), Enabled.
Resources Controlled By
By Choosing “
Auto(ESCD)
” (default), the system BIOS will detect the system
resources and automatically assign the relative IRQ and DMA channel for each
peripheral.By Choosing “Manual”, the user will need to assign IRQ & DMA for
add-on cards. Be sure that there are no IRQ/DMA and I/O port conflicts.
IRQ Resources
This submenu will allow you to assign each system interrupt a type, depending on
the type of device using the interrupt. When you press the “Press Enter” tag, you
will be directed to a submenu that will allow you to configure the system interrupts.
This is only configurable when “Resources Controlled By” is set to “Manual”.
IRQ-3 assigned to
PCI Device
IRQ-4 assigned to PCI Device
IRQ-5 assigned to
PCI Device
IRQ-7 assigned to
PCI Device
IRQ-9 assigned to PCI Device
IRQ-10 assigned to
PCI Device
IRQ-11 assigned to
PCI Device
IRQ-12 assigned to PCI Device
IRQ-14 assigned to
PCI Device
IRQ-15 assigned to
PCI Device
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