Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!netsys!len
From: len@netsys.netsys.COM (Len Rose)
Newsgroups: comp.sys.att,u3b.tech
Subject: Re: 3B2 memory, floppy drive
Summary: If this is from a support person.. sigh.
Keywords: 3B2 MEMORY FLOPPY ETC.
Message-ID: <17702@netsys.netsys.COM>
Date: 17 Jan 90 18:25:15 GMT
References: <2182@becker.UUCP> <1069@icus.islp.ny.us> <860@red12.qtp.ufl.edu> <11033@attcan.UUCP>
Followup-To: u3b.tech
Distribution: usa
Organization: Netsys,Inc. (AT&T 3B2 Specialists)
Lines: 30

<In an earlier article ram@attcan.UUCP (Richard Meesters) writes:
>In an even more early article, taylor@qtp.ufl.edu (Charles Taylor) writes:

>   1. Is the floppy drive that came standard on the machine a 360K or
>      1.2 Mbyte floppy drive and which device do I use to address it
>      as a 1.2 Mbyte drive? (if applicable).

<The 3B2 line uses a 720K floppy drive, You must use 96tpi double or high
<density diskettes with this drive, and you are better off if you use the 
<high density media ( more reliability ).

This is wrong. You cannot use high density diskettes in the floppy. 
Standard 360k floppy diskettes are the correct type to use.

>     b. How is the upgrade installed i.e. plug in chips, special adapter card,
>        etc...?

<The upgrade is installed by adding a second one meg memory card, or by removing
<the current 1 Meg card and adding a 2 Meg card.  Using AT&T equipment, max
<memory on a 3B2/300 is 4 Megs.

 Using ANYONE's equipment, the maximum memory on a 3B2/300-310-400 is 4 meg.
 The memory hardware cannot address more than 4 megabyte. It's been closely
 scrutinized by people with access to schematics. The only way to do it would
 require a complete re-design of the motherboard and most of the microcode.


>     Richard A Meesters              
>     Technical Support Specialist   
>     AT&T Canada