Asus M2N-Plus SLI Vista Motherboard Installation Guide - Page 42

Interrupt assignments, PCI slots, PCI Express x1 slots, IRQ assignments for this motherboard

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2.5.3 Interrupt assignments Standard interrupt assignments IRQ Priority Standard function 0 1 System Timer 1 2 Keyboard Controller 2 - Redirect to IRQ#9 4 12 Communications Port (COM1)* 5 13 IRQ Holder for PCI Steering* 6 14 Floppy Disk Controller 7 15 Printer Port (LPT1)* 8 3 System CMOS/Real Time Clock 9 4 IRQ Holder for PCI Steering* 10 5 IRQ Holder for PCI Steering* 11 6 IRQ Holder for PCI Steering* 12 7 PS/2 Compatible Mouse Port* 13 8 Numeric Data Processor 14 9 Primary IDE Channel * These IRQs are usually available for ISA or PCI devices. IRQ assignments for this motherboard PCI 1 PCI 2 Onboard 1394 PCIE x16_1 PCIE x16_2 PCIE x 1_1 PCIE x 1_2 A B C D E F G H - shared - - - - - - - - shared - - - - - shared - - - - - - - shared - - - - - - - - - - - - shared - - - - - - - - shared - - - - - shared - - - 2.5.4 PCI slots The PCI slots support cards such as a LAN card, SCSI card, USB card, and other cards that comply with PCI specifications. Refer to the figure on the next page for the location of the slots. 2.5.5 PCI Express x1 slots This motherboard supports PCI Express x1 network cards, SCSI cards and other cards that comply with the PCI Express specifications. Refer to the figure on the next page for the location of the slots. 2-18 Chapter 2: Hardware information

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2-18
Chapter 2: Hardware information
2.5.3
Interrupt assignments
Standard interrupt assignments
* These IRQs are usually available for ISA or PCI devices.
IRQ
Priority
Standard function
0
1
System Timer
1
2
Keyboard Controller
2
–
Redirect to IRQ#9
4
12
Communications Port (COM1)*
5
13
IRQ Holder for PCI Steering*
6
14
Floppy Disk Controller
7
15
Printer Port (LPT1)*
8
3
System CMOS/Real Time Clock
9
4
IRQ Holder for PCI Steering*
10
5
IRQ Holder for PCI Steering*
11
6
IRQ Holder for PCI Steering*
12
7
PS/2 Compatible Mouse Port*
13
8
Numeric Data Processor
14
9
Primary IDE Channel
IRQ assignments for this motherboard
A
B
C
D
E
F
G
H
PCI 1
–
shared
–
–
–
–
–
–
PCI 2
–
–
shared
–
–
–
–
–
Onboard 1394
shared
–
–
–
–
–
–
–
PCIE x16_1
shared
–
–
–
–
–
–
–
PCIE x16_2
–
–
–
–
–
shared
–
–
PCIE x 1_1
–
–
–
–
–
–
shared
–
PCIE x 1_2
–
–
–
–
shared
–
–
–
2.5.4
PCI slots
The PCI slots support cards such as a LAN card, SCSI card, USB card, and other
cards that comply with PCI specifications. Refer to the figure on the next page for
the location of the slots.
2.5.5
PCI Express x1 slots
This motherboard supports PCI Express x1 network cards, SCSI cards and other
cards that comply with the PCI Express specifications. Refer to the figure on the
next page for the location of the slots.