Standard interrupt assignments
Standard interrupt assignments
Standard interrupt assignments
Standard interrupt assignments
Standard interrupt assignments
I R Q
I R Q
I R Q
I R Q
I R Q
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
* These IRQs are usually available for ISA or PCI devices.
IRQ assignments for this motherboard
IRQ assignments for this motherboard
IRQ assignments for this motherboard
IRQ assignments for this motherboard
IRQ assignments for this motherboard
PCI slot 1
PCI slot 2
IDE (0, 0f, 0)
USB controller 1
USB controller 2
USB controller 3
USB controller 4
USB 2.0 controller
AC'97
Ethernet
AGP
PCIE x1
When using PCI cards on shared slots, ensure that the drivers support
"Share IRQ" or that the cards do not need IRQ assignments; otherwise,
conflicts will arise between the two PCI groups, making the system
unstable and the card inoperable.
1 - 1 6
1 - 1 6
1 - 1 6
1 - 1 6
1 - 1 6
P r i o r i t y
P r i o r i t y
S t a n d a r d F u n c t i o n
S t a n d a r d F u n c t i o n
P r i o r i t y
P r i o r i t y
P r i o r i t y
S t a n d a r d F u n c t i o n
S t a n d a r d F u n c t i o n
S t a n d a r d F u n c t i o n
1
System Timer
2
Keyboard Controller
–
Re-direct to IRQ#9
11
IRQ holder for PCI steering*
12
Communications Port (COM1)*
13
IRQ holder for PCI steering*
14
Floppy Disk Controller
15
Printer Port (LPT1)*
3
System CMOS/Real Time Clock
4
IRQ holder for PCI steering*
5
IRQ holder for PCI steering*
6
IRQ holder for PCI steering*
7
PS/2 Compatible Mouse Port*
8
Numeric Data Processor
9
Primary IDE Channel
10
Secondary IDE Channel
A A A A A
shared
—
shared
—
shared
shared
—
—
—
—
—
shared
shared
shared
B B B B B
C C C C C
D D D D D
—
—
—
—
—
—
—
—
—
—
—
shared
—
used
—
—
—
—
shared
—
shared
—
—
shared
—
—
—
—
—
—
—
—
—
—
C h a p t e r 1 : P r o d u c t i n t r o d u c t i o n
C h a p t e r 1 : P r o d u c t i n t r o d u c t i o n
C h a p t e r 1 : P r o d u c t i n t r o d u c t i o n
C h a p t e r 1 : P r o d u c t i n t r o d u c t i o n
C h a p t e r 1 : P r o d u c t i n t r o d u c t i o n
E E E E E
F F F F F
G G G G G
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
H H H H H