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Re: Drive upgrade on Thinkpads



On Wed, 3 Aug 1994, Tim Tyhurst wrote:

> I went ahead and purchased a 540 megabyte IBM OEM drive from Micro
> Machines for $695, and replaced my 360Cs' 170 megabyte drive. No problems in
> the installation (the form factors are identical) and the device appears
> to work just fine. The only oddity so far is that 32 bit disk access no
> longer works in Windows for Workgroups -- the WDCTL device driver complains
> about a phase error at 07,1F when starting up. Anybody have any hints
> on that one? Turning off 32 bit access permits WfW to start up normally.

Perhaps someone should start buying the 170MB drives from IBM, take off 
the casing, then buy the 810MB OEM drive from IBM without the case and 
then sell the 810MB drive with the case.  I bet it would still be cheaper 
than buying the 810MB drive directly from IBM.  
As for the 32bit disk access problem, I remember reading somewhere (maybe 
here on this list) that it would not work with drives larger than 
~512MB.  Seems odd to me because I thought 32bit means you can address up 
to 4GB (at least thats the way it works with memory).

Josh Hosseinoff
hosseino@yu1.yu.edu