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Interrupt levels
IRQ
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Device
Interval timer
Keyboard buffer full
Cascade interrupt for IRQ9
Onboard serial port B (COM2)
Onboard serial port A (COM1)
Onboard network adapter, USB
Onboard floppy disk controller
Parallel port LPT1
Real-time clock (RTC)
ACPI
Onboard SCSI A and B (SM card)
NIC (SM card)
Onboard PS/2 mouse port
Arithmetic coprocessor
IDE controller
VGA (SM card)
252
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