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Chapter 4: The BIOS Setup Utility
devices. If you select Auto all the interrupt request (IRQ)
and DMA assignment fields disappear, as the BIOS auto-
matically assigns them.
Reset Configuration Data
Select Enabled to reset Extended System Configuration
Data (ESCD) when you exit Setup. This selection allows
the PnP BIOS to detect your PCI and ISA PnP devices
and reallocate resources to them. The default setting is
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
PCI/ISA PnP Devices compliant with the Plug and Play
DMA n Assigned To
When resources are controlled manually, assign each sys-
tem DMA channel as one of the following types, depending
on the type of device using the interrupt:
Legacy ISA
PCI/ISA PnP Devices compliant with the Plug and Play
48
Micronics C400 System Board Manual
Devices compliant with the original PC
AT bus specification, requiring a specific
interrupt (such as IRQ4 for COM 1) or
older ISA cards that use jumpers to adjust
resources.
standard, whether designed for PCI or
ISA bus architecture.
Devices compliant with the original PC AT
bus specification, requiring a specific DMA
channel or older ISA cards that use jump-
ers to adjust resources.
standard, whether designed for PCI or ISA
bus architecture.
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