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SPECIFICATIONS System Specifications
| System Interrupts |
Default IRQ |
PIR |
Function |
Alternative Mappings |
Device |
IRQ0 |
|
Timer |
N/A |
South Bridge |
IRQ1 |
|
Keyboard |
N/A |
South Bridge |
IRQ2 |
|
Internal 8259 Cascade |
N/A |
South Bridge |
IRQ3 |
X |
Modem |
Model Specific |
Modem |
IRQ4 |
X |
COM1 Serial Port |
3, Disabled |
Super I/O |
IRQ5 |
X |
Audio |
7, 9, 10, 11, Disabled |
Audio Controller |
IRQ6 |
X |
Floppy Disk Controller |
Disabled |
Super I/O |
IRQ7 |
X |
LPT1 Parallel Port |
3, 4, 5, 9, 10, Disabled |
Super I/O |
IRQ8 |
|
Real Time Clock |
N/A |
South Bridge |
IRQ9 |
X |
USB, NIC |
PIR |
USB Controller |
IRQ10 |
X |
|
|
|
IRQ11 |
X |
|
|
|
IRQ12 |
X |
PS/2 Mouse |
Disabled |
South Bridge |
IRQ13 |
|
Numeric Coprocessor |
Disabled |
South Bridge |
IRQ14 |
X |
Primary IDE |
PIR, Disabled |
IDE Controller |
IRQ15 |
X |
Secondary IDE |
PIR, Disabled |
IDE Controller |
To determine any of these system
settings, follow these steps:
| 1 |
Click on Start |
| 2 |
Navigate to Programs
 Accessories
System Tools System Information |
| 3 |
In the lefthand frame, click
on Hardware Resources |
| 4 |
Select the setting type you
are interested in, and the settings will appear in the righthand frame. |
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