[comp.os.cpm] INFO-CPM Digest V89 #139

Lewallen@DOCKMASTER.NCSC.MIL (06/19/89)

Sub:  K10 Hard disk problems in info-cpm v89139
  I have two K10s, one 84 and one 83.  The 84 has a different hard disk
controller.  I am not sure of the numbers of the controllers, but the 84
has another 40 pin chip on it.  On my 83, I had the problems described
in info-cpm139.  I reformatted and problem cleared up.  I had another
friend with an 83 K10 and he stated he had to reformat at least once a
year becuase of simular problems.  The 84 has not had any problems like
that in the 3 years I have owned it.  It appears that, if the hard drive
is not damaged, it can usually be restored to normal operation by
reformatting.  Would be interested in hearing from other K10 owners
about their problems/non-problems they have had.  Ric Lewallen Lewallen
@ Dockmaster.ncsc.mil

CHWEST@UALR.BITNET ("CP/M is not dead...It is resting with its eyes closed") (06/20/89)

Subject: kaypro 10 disk problem
In recent articles I noticed problems with kaypro 10 disk drives
mentiones as follows:

>>In article <2229@ur-cc.UUCP> mjtt@uhura.cc.rochester.edu (Mike Scott) writes:
>>I have a Kaypro 10 running CPM 2.2 and have been receiving occasional 'System
>>Status 02 - BDOS error'.

>My Kaypro 10 had similar problems, and CHECK showed tons of errors on
>the A: drive.  Most of the errors were in the directory area, and eventually
>it wouldn't even boot from the HD.  I was sure I was in for a new drive,
>so after making sure I had a good back up (or 2), I ran FORMAT.COM, to
> more stuff deleted......

Well it is time for a simple reminder that several Kaypro 10 owners
didn't notice in the owners manual that I found caused similar
problems for several users in our local kaypro group. This disk
error cropped up because of dust and heat buildup in the 10's.

On the back of the Kaypro 10 over the fan is a small filter
(foam) that got clogged easily. Kaypro recommended cleaning
it often, avouding heat buildup. We noticed that when the filter
clogged it would sometimes allow the first dust gathered to pull
through the filter.

Simply take the plastic cover off the fan and wash the filter.
Allow it to dry before restarting the computer. If the filter
is torn or ragged you can find a large replacement at most hardware
stores or even at most of the ????marts in the form of an
air conditioning filter of 1/8 inch foam.

I know this sounds simple to most computer users but I found
that several kaypro 10 owners did not see this in the
owners manual.

CHWEST@UALR

Charles West

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U.S.S CP/M         Don't give up the ship!