Dell Precision 610 Dell Precision WorkStation 610 Mini Tower Systems User's Gu - Page 165

Primary EIDE interface if Enabled in System Setup pro

Page 165 highlights

Problems can arise if two devices attempt to use the same IRQ line. To avoid this type of conflict, check the documentation for the default IRQ line setting for each installed device. Then consult Table B-9 to configure each device for one of the available IRQ or other lines. NOTE: Interrupts for the on-board sound, NIC, and both SCSI channels are assigned dynamically by the system basic input/output system (BIOS). IRQ0 System timer IRQ1 Keyboard controller IRQ2 Interrupt controller (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 System Setup program) IRQ15 Secondary EIDE interface (if Enabled in System Setup program) NOTE: For the full name of an abbreviation or acronym used in the table, see the Glossary. A processor and programs operating under MS-DOS (real-mode operation) can address only 1 megabyte (MB) (1024 kilobytes [KB]) of system memory. This area is Hardware Configuration Features B-17

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Hardware Configuration Features
B-17
,QWHUUXSW±$VVLJQPHQWV
Problems can arise if two devices attempt to use the same IRQ line. To avoid this type
of conflict, check the documentation for the default IRQ line setting for each installed
device. Then consult Table B-9 to configure each device for one of the available IRQ or
other lines.
NOTE: Interrupts for the on-board sound, NIC, and both SCSI channels are assigned
dynamically by the system basic input/output system (BIOS).
0HPRU\±$OORFDWLRQV
A processor and programs operating under MS-DOS (real-mode operation) can
address only 1 megabyte (MB) (1024 kilobytes [KB]) of system memory. This area is
IRQ0
System timer
IRQ1
Keyboard controller
IRQ2
Interrupt controller (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 System Setup pro-
gram)
IRQ15
Secondary EIDE interface (if Enabled in System Setup
program)
NOTE: For the full name of an abbreviation or acronym used in the table, see the
Glossary.