System interrupts
This table shows the system Interrupt Requests (IRQs) and their functions. You
may use this information if you install an adapter card that requires you to set IRQs.
In some cases, the device listed uses the IRQ.
Table 4: System interrupts
Interrupt
request (IRQ)
0
1
2
3
5
6
7
8
9
10
11
12
13
14
15
Function
Timer
Keyboard
Programmable Interrupt Controller
Serial Port, Communications port
Modem/Audio
Diskette
Parallel, Printer port
Real Time Clock/System CMOS
ACPI SCI
Audio
Ethernet, LAN
PS/2 Mouse
Numeric Data Processor
Primary IDE
Secondary IDE
Specification tables
A-5