RE: Using ST-225 in a CBM D9090 hard drive

From: B Degnan (
Date: 2006-10-02 16:32:03

I feel your pain...I had been working so hard to get a drive to work.
I really wanted to have a working drive for the Vintage Computer 
Festival East this year, but no luck.  Here are more things that 
I did to finally get a D9090 the drive to work with an ST-225, in 
addition to what I wrote last time:

1.  First cook the hard drive for 3 minutes in the oven at 150 F 
degrees (C?) to liberate the lubrication in the drive.
1.5 Low level format the drive in an IBM XT first using diagnostics,
2.  Because the ST-225 is smaller than the Tan 603s you should put 
in new spacers for the drive cards.  It seems like if the top card 
is stressed/bent at all it will not work.  I also had to use plastic 
spacers, not metal.  Don't let the two cards come in contact with 
each other.
3.  Run the drive for 10-15 minutes before I power on the computer
4.  Run the command ?ds$ to make sure I get an all clear (73...) 
from the drive computer.
5.  Pray

Bill D

At Monday, 2 October 2006, you wrote:

>Hallo Anders,
>> .... would die once you reformat it? 
>Worse, I tried the Miniscribe that I mentioned before as well, same 
>So it seems something on one of the boards died :(
>The next step is testing all harddisks now I have a working combination 

>of boards.
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