Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uunet!mcsun!ukc!educ-isis!teexmmo
From: teexmmo@ioe.lon.ac.uk (Matthew Moore)
Newsgroups: comp.sys.ibm.ps2.hardware
Subject: Re: Replace 360K with 1.2M ?
Message-ID: <1990Aug6.174516.25004@ioe.lon.ac.uk>
Date: 6 Aug 90 17:45:16 GMT
References: <12641@rouge.usl.edu>
Reply-To: teexmmo@ioe.lon.ac.uk (Matthew Moore)
Organization: Institute of Education University of London
Lines: 22

In article <12641@rouge.usl.edu> jpd@pc.usl.edu (Dugal James P.) writes:
>
>Our department has a PS2/80-041 with an IBM external 5 1/4" 360K
>drive.  Has anyone tried replacing the diskette drive with a 1.2M drive?
>Given that we drill out the two IBM-special screws and can open the
>cabinet, I wonder if I'll have to mess with driver.sys or patch the DPB
>or whatever.  Meanwhile, our IBM 3090 repair person will try to order
>the screwdriver needed to manipulate a TORX screw with a center post!

We have IBM 4869 external 5.25" 360K/1.2M drives in PS/2 70's and
55SX's. Some of our users have a 360K/1.2M drive made by Sysgen.

The IBM drives require a card, and _another_ mains lead (we feel that
three mains lead for one desktop computer is a bit much).

Whereas the Sysgen has an adaptor widget which plugs into the bus
expansion card used by the disk drives, however it still uses the
external expansion slot plate, ( but draws its power from the bus).

There are spatial snags with adaptor widget and the disk drive cables
in some models, (cant remember which), particularly when fitting two
3.5" drives plus an external 5.25".