System Interrupts - IBM Aptiva Handbook

System interrupts

Table 11 shows the default system interrupt requests (IRQs) and their functions. You may use this information if you
install an adapter card that requires you to set IRQs.
Additional resources may be taken by Plug and Play (PnP) devices. Resources for installed PnP devices, such as the
modem card, can be reassigned by the BIOS or the Windows 95 Device Manager.
Table 11: System board interrupts
Interrupt request (IRQ)
SMI
NMI
0
1
2
3
4
5
6
7
8
9
10
11
12
13
Function
Power management
Parity error or I/O channel check
Timer
Keyboard
Cascade to IRQ8-IRQ15
Serial port A
Modem
Audio
Diskette
Parallel port
Real-time clock
Audio
Modem
User available
Mouse
Math coprocessor
System interrupts 143