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System Overview 1-19
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The following table lists the hardware interrupt request (IRQ) assignments for
Dell Precision 410 systems.
IRQ0 System timer
IRQ1 Keyboard controller
IRQ2 Enables IRQ8 through IRQ15
IRQ3
and
IRQ4
Serial ports
IRQ5 Available
IRQ6 Diskette drive interface
IRQ7 Parallel port
IRQ8 RTC
IRQ9 Available if ACPI is set to Off in System Setup program
IRQ10 Available
IRQ11 Available
IRQ12 Mouse controller
IRQ13 Math coprocessor
IRQ14 Primary EIDE interface (if Enabled in the System Setup program)
IRQ15 Secondary EIDE interface (if Enabled in the System Setup program)
NOTES: For the full name of an abbreviation or acronym used in the table, see the Glossary in
the
User’s Guide.
The integrated NIC, SCSI, and sound systems will be assigned an interrupt request dynami-
cally during system start-up.