🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: net.micro.att
Article #1225

Re: Problem with Symphony on AT&T PC6300 Plus

#1225
From: Tom Lowe
Date: Mon, 29 Sep 1986 20:02
30 lines
2110 bytes
In article <829@mhuxh.UUCP> vxb@mhuxh.UUCP (BRADNER) writes:
>I have been having some difficulty using Symphony version 1.1 on an AT&T
>PC6300 Plus running MSDOS 3.1.
>     
>Symphony, at times, thinks that the 8087 numeric co-processor chip is
>available when in fact none is resident. This doesn't happen on all
>Pc6300 Plus's and when it does, it is sporatic on some machines.
>There is a dip switch on the PC6300 Plus for indicating the 8087 but
>the switch setting doesn't seem to effect Symphony.
>     
>Can anyone tell me what I am doing wrong (or else that there is a compatibility
>problem with Symphony on the PC6300 Plus)?
>     
>Thanks in advance for any suggestions on how I can get around this.
>     
>                    Vern Bradner
>                    :ihnp4,seismo!akgua:!mhuxh!vxb

Some versions of LOTUS and related programs had a bug in them that
actually went to the port containing the 80287 chip and checked the
levels of a couple pins.  If there was no 80287 chip there, it 
wouldn't see the levels it should see.  Thus AT&T started installing
a chip called a spider chip.  It is basically a socket header that had
three components that took appropriate pins to the electronic levels
expected for no 80287 chip.  When you get a 80287 chip, you would
simply replace the spider chip and flip a switch.  If your machine
doesn't have this spider chip, and you don't have an 80287 chip,
call the AT&T Hotline at 800-922-0354.  They will send you one.

--Tom Lowe
Technical Details
Message-ID: <2290@psuvax1.UUCP>
Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!cbatt!ihnp4!qantel!lll-lcc!lll-crg!seismo!rutgers!caip!cbmvax!vu-vlsi!psuvax1!lowe
References: <829@mhuxh.UUCP>

Show Full Headers
Complete Article Headers
Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!cbatt!ihnp4!qantel!lll-lcc!lll-crg!seismo!rutgers!caip!cbmvax!vu-vlsi!psuvax1!lowe
From: lowe@psuvax1.UUCP (Tom Lowe)
Newsgroups: net.micro.att,net.micro.pc
Subject: Re: Problem with Symphony on AT&T PC6300 Plus
Message-ID: <2290@psuvax1.UUCP>
Date: Mon, 29-Sep-86 16:02:32 EDT
Article-I.D.: psuvax1.2290
Posted: Mon Sep 29 16:02:32 1986
Date-Received: Wed, 1-Oct-86 03:33:46 EDT
References: <829@mhuxh.UUCP>
Reply-To: lowe@psuvax1.UUCP (Tom Lowe)
Organization: Pennsylvania State Univ.
Lines: 30