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Appendix C
IRQ
The factory-set interrupt requests are listed below. Find an appropriate one to install an optional
device.
Interrupt Request
The factory-set IRQs are assigned as follows:
IRQ
Peripheral Device (Controller)
0
System timer
1
–
2
–
3
COM2 serial port
4
COM1 serial port
5
PCI
6
–
7
PCI
8
Real-time clock
9
ACPI Compliant System
10
PCI
11
Mother Board Resource
12
SM Bus
13
Numeric processor
14
Primary IDE channel
15
–
16
VGA
17
–
18
LAN1
19
LAN2
20
USB
21
USB
22
USB
23
USB
Summary of Contents for Express5800/120Ei
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