ncr/doc/Kiosks/TechnicalManuals/7401_Kiosk_Har... - Alsys Data

5-26 Chapter 5: Setup
Interrupts (7401-26xx/46xx BIOS Version 2.3.x.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
6 MSR
7 Parallel port 1
8 Real time clock
9 System monitor
10 Audio, LAN
11 Communications port (COM 4) or Port D
12 PS/2 compatible mouse port
13 Math coprocessor
14 On‐board IDE
15 Secondary IDE
The Mouse uses IRQ 12 and so does the Touch Screen. Since the Touch
Screen serves as a mouse, it cannot be freed up unless you donʹt want
to use either. The Audio and LAN share IRQ 10, and since these are
PCI IRQs, they can move around depending on what is available in the
system.