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Article #19302

Re: diskette drive puzzle - help!

#19302
From: Mark
Date: Fri, 22 Jan 1993 13:56
64 lines
3403 bytes
In article <1993Jan20.213619.19025@kronos.arc.nasa.gov>, chguest@pioneer.arc.nasa.gov ( Charles J. Guest ) writes:
> Okay folks I got one for you, how's this for an unusual problem:
> 
> Hardware: AMI 386
> Floppy drive a: 1,2 meg 5.25 inch
> Memory: 640+384  and 3 meg expanded on add in card.
> DOS: 4.01
> 
> I had un unusual failure last night.  I would put a 5.25 inch
> disk in drive a, do a 'dir' on it and get the information. I
> then put a new diskette in it and did a 'dir' and got the SAME
> information as on the first disk... problem was the diskettes
> were totally different.  Even the serial numbers on the diskettes
> showed the same.  This problem would go away with a power off
> or a reboot, that is to say it would now read the second diskette okay,
> but if I put in a third it would again show the same dir information
> from diskette two.
>  
> It would access files from the first diskette okay, but if I put
> in a new diskette and attempted to run a program known to be on
> diskette 2, it would not find it, seemingly because it still thought
> it had the first diskette in there.
> 
> The obvious question:  What the heck have I got broken here.
> 
> I checked for viruses with the new McAffee scan (99?) (97?) but
> nothing was found.  I was told possibly a bad drive, but I cant
> figure out how that would be the problem.  I am thinking controller
> card, but that same card also controls my HD, so I dont want to 
> mess with it if I dont have to.  I also am playing with the idea
> that it is something funny on the motherboard.  Ugh. Yea it was
> used, but an old QAplus checked it out okay before I installed it.
> 
> Any ideas?
> 
> Thank you. 
> Charles
> 
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> + *READ* ---> The opinions expressed above are to the best of my knowledge, +
> + however all options should be discussed with persons who have professional+
> + training with the subjects covered here. * ALL POSSIBLE DISCLAIMERS APPLY!+
> + ____FROM: chguest@pioneer.arc.nasa.gov =>or<= sun!ames!pioneer!chguest____+
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> +  ...One useless man is called a disgrace, two are called a law firm, and  +
> +     three or more become a congress....                                   +
> + A new Soviet/American truism - KGB does NOT stand for Kinder Gentler Boys +
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


You may find that the switch that senses the change of disk is not working.  If
this is the case, then when you try to do a dir, the computer will use the
information that it took from the last disk access.  The disk will still spin
though.


Mark


-- 
Mark 
______________________________________________________________________________
mark@uk.ac.ox.physchem
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Path: arc1-ca.pugleaf.net!sparky!uunet!pipex!doc.ic.ac.uk!uknet!comlab.ox.ac.uk!mark
References: <1993Jan20.213619.19025@kronos.arc.nasa.gov>

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From: mark@physchem.ox.ac.uk (Mark)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: diskette drive puzzle - help!
Message-ID: <1993Jan22.135640.8413@physchem.ox.ac.uk>
Date: 22 Jan 93 13:56:40 GMT
References: <1993Jan20.213619.19025@kronos.arc.nasa.gov>
Sender: mark@physchem (Mark)
Organization: Physical Chemistry Laboratory, South Parks Road, Oxford OX1 3QZ
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Originator: mark@joule.pcl