IEI Integration NANO-LX v1.21 - Manual (Page 139)

NANO-LX EPIC SBC
Page 124
BIOS Menu 10: IRQ Resources
The IRQ Resources menu has the following options:
IRQ-3 assigned to
IRQ-4 assigned to
IRQ-7 assigned to
IRQ-10 assigned to
IRQ-11 assigned to
The above options all have the following default options.
PCI/ISA
PnP
(Default) The IRQ is assigned to legacy ISA for devices compliant
with the original PC AT bus specification, PCI/ISA PNP for
devices compliant with the Plug and Play standard
whether designed for PCI or ISA bus architecture.
Legacy ISA The IRQ is assigned to legacy ISA