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ASUS P4B-E motherboard user guide
4-23
IRQ XX Reserved [No/ICU]
These fields indicate whether or not the displayed IRQ for each field is
being used by a legacy (non-PnP) ISA card. The setting [No/ICU] for an
IRQ field indicates that you are using the ISA Configuration Utility (ICU),
and that this particular IRQ is NOT required by a legacy ISA card. Set the
IRQ field to [Yes] if you install a legacy ISA card that requires a unique IRQ
and you are NOT using ICU. Configuration options: [No/ICU] [Yes]
4.4.3.1 PCI IRQ Resource Exclusion
Onboard LAN Boot ROM [Disabled]
This field allows you to enable or disable the option ROM in the onboard
LAN chipset. Configuration options: [Disabled] [Enabled]]
Onboard ATA Device First [Yes]
This field allows you to select the onboard ATA or a SCSI device. The
default setting [Yes] selects the onboard ATA device. Selecting the option
[No] selects the SCSI device. Configuration options: [No] [Yes]]