User Guide

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PNP/PCI Configuration > IRQ Resources
"+8
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If your device is not PnP compatible and requires a special
IRQ to support its function, set the selected IRQ to
Reserved
. This setting informs the PnP BIOS to reserve the
selected IRQ for the installed legacy device. The default is
PnP
. Note that PCI cards are always PnP compatible
(except old PCI IDE card).
The available IRQs are: IRQ3 (COM2), IRQ4 (COM1), IRQ5 (Network/Sound or Others), IRQ7
(Printer or Others), IRQ9 (Video or Others), IRQ10 (SCSI or Others), IRQ11 (SCSI or Others),
IRQ12 (PS/2 Mouse), IRQ14 (IDE1), IRQ15 (IDE2).