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From: mark@cbosgd.UUCP (Mark Horton)
Newsgroups: net.micro.pc
Subject: Re: IBM pc Multi-function board poll: summary of responses.
Message-ID: <1388@cbosgd.UUCP>
Date: Tue, 29-May-84 00:48:28 EDT
Article-I.D.: cbosgd.1388
Posted: Tue May 29 00:48:28 1984
Date-Received: Thu, 31-May-84 23:48:48 EDT
References: <156@fisher.UUCP> <1010@wateng.UUCP> <125@tilt.UUCP>
Organization: AT&T Bell Laboratories, Columbus
Lines: 20

Another thing to take into account when choosing non IBM boards.

I have an XT with a quadboard and an STB monitor board.  I was having
trouble with the serial ports.  The local dealer's service shop guy
whipped out his quadboard manual and immediately found the problem -
I hadn't changed the interrupt vector from RQ4 to RQ3, even though
the quadboard serial port was COM2 (since the XT port was COM1).

This is my one complaint about Quadram's otherwise excellent product - nowhere
in the manual that I could find did it say what the heck RQ3 and RQ4
were or that I should change it if I ran it as COM2.

The service person was puzzled by the STB board, however.  He had never
seen one before, and didn't understand why nothing useful came out of the
composite video plug in the back.  I had been hanging around and explained
that the board was configured as a monochrome monitor and not color.

So only the high volume well known brands are likely to be easily serviced.

	Mark