If your computer adheres to the Intel MultiProcessor Specification version 1.4, Peripheral Component Interconnect (PCI) devices may display interrupt request (IRQ) numbers above 15.

Example:

Devices  Vector  Level  Affinity
i8042prt   1       1    0xffffffff
i8042prt  12      12    0xffffffff
serial     4       4    0x00000000
serial     3       3    0x00000000
el59x     32      <b>32</b>    0x80719ce0
floppy     6       6    0x00000000
sndblst  178       5    0x00000001
aic78xx   40      <b>40</b>    0x00000000
NOTE: the IRQs for the el59x and aic78xx devices.

NOTE: Press Hardware Resources and IRQ information.

This condition is normal and results from the way that the BIOS and HAL interacts with the computer's Asynchronous Processor Interrupt Controller (APIC).

NOTE: See tip 2239 ยป Windows 2000 IRQ sharing.