Interrupt assignments – Dell Precision 610 User Manual
Page 98
Figure B-10. Microphone Jack
Line-Out Jack
The line-out jack (see Figure B-11) can be used to attach most computer speakers. The line-out jack is amplified, so speakers
with integrated amplifiers are not required. Connect the audio cable from the speakers to this jack.
Figure B-11. Line-Out Jack
Line-In Jack
The line-in jack (see Figure B-12) can be used to attach record/playback devices such as cassette players, CD players, and VCRs.
Connect the line-out cable from any of these devices to the line-in jack on the back of your computer.
Figure B-12. Line-In Jack
Interrupt Assignments
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).
Table B-9. Interrupt Assignments
IRQ Line
Used By/Available
IRQ0
System timer
IRQ1
Keyboard controller
IRQ2
Interrupt controller (enables IRQ8 through IRQ15)
IRQ3
and
IRQ4
Serial ports
IRQ5
Available