Intel SE440BX-2 Product Guide - Page 59

Interrupts, Table 39.

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SE440BX-2 Motherboard Product Guide Interrupts Table 39. Interrupts IRQ System Resource NMI I/O channel check 0 Reserved, interval timer 1 Reserved, keyboard buffer full 2 Reserved, cascade interrupt from slave PIC 3 COM2* 4 COM1* 5 LPT2 (Plug and Play option)/audio/user available 6 Diskette drive controller 7 LPT1* 8 Real time clock 9 Reserved 10 USB/User available 11 Windows Sound System*/user available 12 Onboard mouse port (if present, else user available) 13 Reserved, math coprocessor 14 Primary IDE (if present, else user available) 15 Secondary IDE (if present, else user available) • Default, but can be changed to another IRQ 59

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SE440BX-2 Motherboard Product Guide
59
Interrupts
Table 39.
Interrupts
IRQ
System Resource
NMI
I/O channel check
0
Reserved, interval timer
1
Reserved, keyboard buffer full
2
Reserved, cascade interrupt from slave PIC
3
COM2*
4
COM1*
5
LPT2 (Plug and Play option)/audio/user available
6
Diskette drive controller
7
LPT1*
8
Real time clock
9
Reserved
10
USB/User available
11
Windows Sound System*/user available
12
Onboard mouse port (if present, else user available)
13
Reserved, math coprocessor
14
Primary IDE (if present, else user available)
15
Secondary IDE (if present, else user available)
•
Default, but can be changed to another IRQ