2 System Board
Assigned Device Interrupts
Assigned Device Interrupts
Input/Output Controller Hub Interrupts
Device
CS4280 Audio Controller
1
USB Controller
AGP slot
PCI 32-bit slot #1
PCI 32-bit slot #2
PCI 32-bit slot #3
PCI 32-bit slot #4 (SCSI
controller on some models)
PCI 32-bit slot #5 (LAN card)
1.
The USB interrupt is connected within the ICH to intD.
70
REQ/
IDSEL
ID
GNT
AD[xx]
0
5
21
—
—
—
—
0
16
5
6
22
4
8
24
3
9
25
2
10
26
1
11
27
Chip-set Interrupt Connection
INTA
INTB
INTC
—
A
—
—
A
B
C
D
A
B
D
A
C
D
B
C
INTD
—
—
—
A
—
—
A
B
C
D
B
C
A
B
D
A