Asus M2N-E User Manual - Page 41

Interrupt assignments, PCI slots - processor support

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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 A B C D E F G H PCI Slot 1 shared PCI Slot 2 shared PCI Slot 3 shared PCIe x16 slot 1 shared PCIe x4 slot 1 shared PCIe x1 slot 1 shared PCIe x1 slot 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 below for the location of the slots. We recommend that you use PCI3 slot for long PCI cards. ASUS M2N-E 2-17

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ASUS
M2N-E
2-±¶
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
A
B
C
D
E
F
G
H
PCI Slot 1
shared
PCI Slot 2
shared
PCI Slot 3
shared
PCIe x16 slot 1
shared
PCIe x4 slot 1
shared
PCIe x1 slot 1
shared
PCIe x1 slot 2
shared
IRQ assignments for this motherboard
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 below for the location
of the slots.
We recommend that you use PCI3 slot for long PCI cards.