Typical device interrupts

One of the most common causes of problems both during and after installation is a device interrupt conflict. Make sure device interrupts do not conflict and do not use the reserved interrupts indicated in Table 14-1 or your system will probably fail to boot.

Table 14-1 Typical device interrupts

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 Interrupt   Octal   Device
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 0∗          0       Clock
 1∗          1       Console
 2           2       Networks, tapes and others
 3           3       Serial COM2
 4           4       Serial COM1
 5           5       Alternate parallel port (lp2)
 6∗          6       Floppy disk
 7           7       Main parallel port (lp0 or lp1)
 9∗          11      Chain from IRQ2
 10          12
 11∗         13      SCSI host adapter 0
 12          14      SCSI host adapter 1
 13∗         15      FPU
 14∗         16      ST506/ESDI/IDE controller 0
 15          17      ST506/EDSI/IDE controller 1

* Do not attempt to use these interrupts for any other purpose.