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From: jca@pnet01.cts.com (John C. Archambeau)
Newsgroups: comp.sys.ibm.pc
Subject: Re: What's IRQ 2 used for on an AT?
Message-ID: <2936@crash.cts.com>
Date: 1 Jun 90 01:16:01 GMT
Sender: root@crash.cts.com
Organization: People-Net [pnet01], El Cajon CA
Lines: 25

U5533129@ucsvc.ucs.unimelb.edu.au (CARDIOLOGY, R.M.H.) writes:
>Can anyone out there tell me what the IRQ 2 line is used for on an AT?
>
>I've just set up an ethernet card to use it, but when I told the supplier he
>said he though it would clash with the second interupt controller.  I've been
>using it for several weeks without any problem.  Have I just been lucky, or
>is there a conflict there?

It varies.  IRQ 2 is the default IRQ for most networking boards whether it be
arcnet or ethernet.  If you haven't had a problem yet and you are using the
board regularly then it shouldn't give you any problems at all.  This is a
general rule of thumb and not an absolute though.  I have had occassions where
I've had occassions where I had to set networking boards at an IRQ other than
2.
 
     // JCA

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