Interrupt and DMA Resources
This section lists the settings for the default interrupt and direct-memory-access
(DMA) resources for your computer. The interrupt and DMA settings might change
when your computer is configured.
The Advanced Programmable Interrupt Controller (APIC) manages additional
hardware interrupts to the system BIOS. The following interrupts are available to
the APIC.
Table 2. Interrupt Resources
Interrupt Request
System Resource
0
Timer
1
Keyboard
2
Interrupt Controller
3
3
Serial Port 2
4
3
Serial Port 1
5
Available
6
Diskette
7
3
Parallel Port
8
Real Time Clock
9
ACPI
10
Available
11
Available
12
Mouse
13
Coprocessor
14
IDE Drives on primary channel
15
IDE Drives on secondary channel
Interrupt Request
System Resource
16
PCI Device
17
PCI Device
18
PCI Device
19
PCI Device
20
Not available
21
Not available
22
Not available
23
Not available
24
SMI (System Management Interrupt)
3
Can be modified to alternative settings or disabled.
50
Z Pro User Guide
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