Date   : Thu, 22 Nov 1990 03:05:04 GMT
From   : mvb.saic.com!ncr-sd!simasd!simasd!pnet07!donm@ucsd.edu (Don Maslin)
Subject: Strange Kaypro problems

                                                      11-21-90
 
First, a blushing thanks for the kudo!
 
Taking things in a different order than you presented them:
 
      The results you are getting with COPY.COM and STAT.COM are
      obviously not right.  Their CRCs should be 62 12 and 4C ED,
      respectively.  If they are not, let me know and I will see that
      you get 'fresh' copies.
 
      The fact that your retry problem, during format, is 'portable'
      from drive to drive suggests a diskette problem - but not
      necessarily!  I have had some problems in the past on a Morrow
      machine, with the old Shugart single sided drives, that looked
      like a disk problem but the problem was really the drives sticking
      and not indexing properly.
 
      On the later machines, at least, the drive light (and motor) stay
      on for several seconds after disk access and then turn off.  I
      would assume that yours should do that also.
 
      In order to use QD drives you need to make changes to both ROM and
      BIOS.  There are/were a couple of outfits that had slightly
      differing versions: Advent's TurboROM and Micro Cornucopia's MAX
      ROM.  I hear that Advent has shut down (I have not personally
      checked that), but Micro C is still selling their stuff - just out
      of the magazine business.
 
By the way, when you 'pry the machine apart' to anoint the drives with
alcohol, check the ROM number.  It should be chip U47 near front center,
and the ROM number should be either 81-149-C or 81-232-A.
 

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