Intel Motherboard Raptor AT - Interrupts; PCI Interrupt Routing Map

Raptor AT – Installation Guide
46
Bus # Device # Function # Description
00 14 00 PCI expansion slot 4
00 0E 00 82559ER Ethernet
Interrupts
IRQ System Resource
NMI I/O channel check
0 Reserved, interval timer
1 Reserved (keyboard)
2 Reserved (cascade)
3 COM2*
4 COM1*
5 User Available
6 Floppy Drive
7 LPT1*
8 Real time clock
9 User Available
10 User Available
11 User Available
12 PS/2 mouse port (if present, else user available)
13 Reserved (math coprocessor)
14 Primary IDE (if present, else user available)
15 Secondary IDE (if present, else user available)
*Default, but can be changed to another IRQ
PCI Interrupt Routing Map
PIIX4
Signal
IDSEL PIRQA PIRQB PIRQC PIRQD
PCI Slot 1 AD26 INTC INTD INTA INTB
PCI Slot 2 AD27 INTB INTC INTD INTA
PCI Slot 3 AD29 INTA INTB INTC INTD
PCI Slot 4 AD31 INTD INTA INTB INTC
Ethernet AD25 INTA
USB - INTD