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Interrupt requests are shared as shown below:
P
I C
1
P
I C
2
P
I C
3
P
I C
4
P
I C
5
A
G
P
S
t o l
A
C
9
7
O
n
b
o
a
d r
U
S
B
1
O
n
b
o
a
d r
U
S
B
2
O
n
b
o
a
d r
U
S
B
3
O
n
b
o
a
d r
U
S
B
4
U
S
B
2
0 .
O
n
b
o
a
d r
S
A -
T
A
(
O
t p
o i
n
a
) l
O
n
b
o
a
d r
L
A
N
(
O
t p
o i
n
a
) l
IMPORTANT!
When using PCI cards on shared IRQ slots, make sure its drivers support “Shared
IRQ”, or that the cards do not need IRQ assignments. IRQ conflicts between the two
PCI groups will make the system unstable or cards inoperable.
N I
T
A
N I
T
B
V
V
V
V
V
V
V
V
V
N I
T
C
N I
T
D
V
V
V
V
V
BIOS
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