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5-14 Chapter 5: Setup
Exit Values
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Interrupts (7401-22xx/35xx/45xx BIOS Version 2.2.1.x)
The following table lists the default settings. To resolve any conflicts,
refer to the notes that follow the table.
IRQ System Resource
NMI I/O channel check
0 Reserved, interval timer
1 Reserved, keyboard buffer full
2 Reserved, cascade interrupt
3 Communications port (COM 2) or Port B
4 Communications port (COM 1) or Port A
5 Communications port (COM 3) or Port C
6MSR
7 Parallel port 1
8Real time clock
9 System monitor
10 Audio, LAN
11 Communications port (COM 4) or Port D
12 PS/2 compatible mouse port