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Hardware Setup
Interrupt Request Routing
The IRQ, acronym of interrupt request line and pronounced I-R-Q, are
hardware lines over which devices can send interrupt signals to the
microprocessor.
DEVICE
INT A#
INT B#
INT C#
INT D#
AGP PIRQA_L
PIRQB_L
N/A
N/A
PCI Slot 1
PIRQF_L
PIRQG_L
PIRQH_L
PIRQE_L
PCI Slot 2 (Mini PCI)
PIRQG_L
N/A
N/A
N/A
P64H2 PIRQC_L
N/A
N/A
N/A
LSI53C1030
PAIRQ8 PAIRQ9 N/A
N/A
PCI-X Slot 3 (SCSI RAID)
PAIRQ0
PAIRQ1
N/A
N/A
PCI-X Slot 4
PAIRQ4
PAIRQ5
PAIRQ6
PAIRQ7
GIGABIT LAN
PBIRQ0
N/A
N/A
N/A
PCI-X Slot 1
PBIRQ4
PBIRQ5
PBIRQ6
PBIRQ7
PCI-X Slot 2
PBIRQ8
PBIRQ9
PBIRQ10
PBIRQ11
MS-9513 (VGA Card)
PIRQG_L
N/A
N/A
N/A
MS-9514 (1394 Card)
PIRQG_L
N/A
N/A
N/A
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