Intel Desktop Board D845EPI Product Guide
Interrupts
Table 36. Interrupts
IRQ
NMI
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
System Resource
I/O channel check
Reserved, interval timer
Reserved, keyboard buffer full
Reserved, cascade interrupt from slave PIC
COM2*
COM1*
LPT2 (Plug & Play option) / **
Diskette drive
LPT1*
Reserved for ICH4 system management bus
User available
User available
Onboard mouse port (if present, else user available)
Reserved, math coprocessor
Primary IDE (if present, else user available)
Secondary IDE (if present, else user available)
*Default, but can be changed to another IRQ.
**Dynamically allocated for all PCI/AGP devices and slots.
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