Adding PCI cards
A26361-D1837-Z120-1-7419, Edition 1
English - 25
Multifunctional expansion cards or expansion cards with integrated PCI-PCI bridge:
These expansion cards require up to four PCI interrupts: INT A, INT B, INT C, INT D. How many and
which of these interrupts are used is specified in the documentation provided with the card.
The assignment of the PCI interrupts to the IRQ Lines is shown in the following table:
Controller or slot INT
Mechanical slot
On board controller
1
2
3
4 5
6
7
USB 1,1
AC97 /
HD
Audio
Slot PCI
PCI
INT
LINE
1
st
2
nd
3
rd
4
th
US
B 2,
0
SMB
u
s
A
udio
H
D
A
udio
LA
N
P
C
Ie
x16
PC
Ie
x
1
PC
Ie
x
1
1 2
3
4
1 (A)
- - - - - - - X X A D B - - - -
2 (B)
- - - - - - X - - B A C - - - -
3 (C)
- - - - - - - - - - B D D
C
A
D
4 (D)
- - - - - X - - - - C A C
D
B A
5 (E)
- - - X - - - - - - - - - - - -
6 (F)
- - X - - - - - - - - - B
A
C
B
7 (G)
- X - - - - - - - - - - A
B
D
C
8 (H)
X - - - X - - - - - - - - - - -
Use first PCI/PCI Express slots that have a single IRQ Line (no IRQ sharing). If you must use
another PCI/PCI Express slot with IRQ sharing, check whether the expansion card properly supports
IRQ sharing with the other devices on this IRQ Line. The drivers of all cards and components on this
IRQ Line must also support IRQ sharing.
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