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From: planting@cs.pitt.edu (Professor Harry Plantinga)
Newsgroups: comp.sys.mac.hardware
Subject: Re: Problems with Quantum LPS52
Message-ID: <10445@pitt.UUCP>
Date: 18 Apr 91 17:15:56 GMT
References: <10424@pitt.UUCP>
Sender: news@cs.pitt.edu
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Organization: University of Pittsburgh
Lines: 32



In article <10424@pitt.UUCP> planting@cs.pitt.edu (I) wrote: 

> I recently purchased a Quantum LPS52 internal disk drive from MacTel.  A 
> day or two after I ordered it, I read a message from someone who was 
> having problems with a Quantum LPS drive.  That message stated that there
> was a bug in the Quantum ROM.
> 
> Sure enough, when I installed mine the computer crashes occasionally on 
> exiting to the Finder and occasionally [has other problems].

Just a follow-up to this message.  I contacted tech-support at the place I 
ordered this disk and got more information.

When I ordered this disk, I specified mounting hardware for a Mac II.  It 
turns out that the disk is also formatted for a Mac II, and cannot be used 
on a slower mac.  Furthermore it cannot be reformatted to be used with a 
slower mac--doing so "blows the EPROM" or something like that.  It has to 
be sent back to the factory.

Sure enough, the disk runs without crashing on my mac II, but crashes on 
my mac plus.  The vendor is going to replace the disk with one formatted 
for a mac plus.

Moral:  there seems to be some problem with reformatting these disks for 
slower computers.  Be sure to get one formatted for the slowest computer 
you will use it with.

----------
Harry Plantinga
planting@cs.pitt.edu