Specifications

5-26 Chapter 5: Setup
Interrupts (7401-26xx/46xx BIOS Version 2.3.x.x)
Thefollowingtableliststhedefaultsettings.Toresolveanyconflicts,
refertothenotesthatfollowthetable.
IRQ System Resource
NMI I/Ochannelcheck
0 Reserved,intervaltimer
1 Reserved,keyboardbufferfull
2 Reserved,cascadeinterrupt
3 Communicationsport(COM2)orPortB
4 Communicationsport(COM1)orPortA
5 Communicationsport(COM3)orPortC
6 MSR
7 Parallelport1
8 Realtimeclock
9 Systemmonitor
10 Audio,LAN
11 Communicationsport(COM4)orPortD
12 PS/2compatiblemouseport
13 Mathcoprocessor
14 On‐boardIDE
15 SecondaryIDE

TheMouseusesIRQ12andsodoestheTouchScreen.SincetheTouch
Screenservesasamouse,itcannotbefreedupunlessyoudonʹt want
touseeither.TheAudioandLANshareIRQ10,andsincetheseare
PCIIRQs,theycanmovearounddepending
onwhatisavailableinthe
system.