Interrupt Request/PCI IRQ Device/I/O Port Address Assignments B-3

PCI IRQ Device Assignments

The PCI devices are assigned IRQs as listed in Table B-2. To change the PCI

IRQ device assignment settings use the procedures in subsection BIOS Setup

Utility of chapter 3.

Table B-2. PCI IRQ Device Assignments

Menu Option Interrupt
PCI IRQ 1 On-board SCSI (Channel 0)
PCI IRQ 2 On-board SCSI (Channel 1)
PCI IRQ 3 On-board LAN, On-board GA
PCI IRQ 4 PCI slot #11 (INT A)
PCI IRQ 5 PCI slot #12 (INT A)
PCI IRQ 6 PCI slot #21 (INT A)
PCI IRQ 7 PCI slot #22 (INT A)
PCI IRQ 8 PCI slot #23 (INT A)
PCI IRQ 9 PCI slot #24 (INT A)
PCI IRQ 10 PCI slot #31 (INT A)
PCI IRQ 11 PCI slot #32 (INT A)
PCI IRQ 12 PCI slot #33 (INT A)
PCI IRQ 13 PCI slot #34 (INT A)
PCI IRQ 14 PCI slot #11 (INT B), PCI slot #11 (INT D), PCI slot #12 (INT C)
PCI slot #21 (INT B), PCI slot #21 (INT D), PCI slot #22 (INT C)
PCI slot #23 (INT D), PCI slot #23 (INT D), PCI slot #24 (INT C)
PCI slot #31 (INT B), PCI slot #31 (INT D), PCI slot #32 (INT C)
PCI slot #33 (INT B), PCI slot #33 (INT D), PCI slot #34 (INT C)
PCI IRQ 15 PCI slot #11 (INT C), PCI slot #12 (INT B), PCI slot #12 (INT D)
PCI slot #21 (INT C), PCI slot #22 (INT B), PCI slot #22 (INT D)
PCI slot #23 (INT C), PCI slot #24 (INT B), PCI slot #24 (INT D)
PCI slot #31 (INT C), PCI slot #32 (INT B), PCI slot #32 (INT D)
PCI slot #33 (INT C), PCI slot #34 (INT B), PCI slot #34 (INT D)