Re: error 85 from Philip Lord on 2005-11-03 (lisalist1)

From: Philip Lord <philip_at_email.domain.hidden>
Date: Thu, 3 Nov 2005 21:28:23 +0900

it sounds like performing a low level format needs some special equipment that I'm not likely to have. If it can't be done on a Mac (now or old) or a Lisa, then I'm kinda screwed.

One other thing I have noticed is an error 10100 next to what I guess is the lisa equivalent of 'Sad-Mac'. Is this related to the drive? I can not find any reference to this code.

So, I will try to pursue the IDEfile direction. I have no knowledge of electronics, however I feel confident with the soldering challenge at least.
Helmut, it sounds like you have built one before. I may have some questions for you in the near future ;-)

I won't give up on the Sun REMarketing drive yet. Maybe I'll email SUN REM direct.
If I don't have the tools, maybe they can still reformat my drive for me.

Thanks for your reply

On Nov 3, 2005, at 5:58 PM, Dr. Helmut Post wrote:

> Hello Phil,
>
> error 85 means: you have reached the hard disk time-out limit...
> the hard
> disk hasn't answered within a given time- probably the system
> track, boot
> secor is bad . You need a fresh low level format.- or a new drive
> if the
> number of bad blocks exceeds 30 counts.
>
>
>
>>
>> I have just finished telling the list that I got my SUN REM drive
>> working again, and that I thought the cause was overheating
>> (Installed a fan). However I still get constant error 85 messages.
>>
>> If I reinstall 7/7 everything seems fine, for a short while, then
>> error 85 starts happening again.
>>
>>
>
> Probably a thermal error with one of the chips ... probably the SMS
> OMTI
> 20813B (MFM controller).
> Do you have a freezing spray to cool down the chips to locate the
> error on
> the controller?
> I have the same problems- no way to get these chips today- only if
> you rip
> the chips from an Amiga 1000 sidecar (PC-XT hardware expansion box)
> or form
> an old Atari ST MFM hard disk controller.
>
>
>> The SUN REM drive uses a Kalok KL320 (20mb) MFM drive. I guess these
>> are getting very old now. Maybe I need to look for another 20mb MFM
>> drive to replace the Kalok with. Will any MFM 20mb drive work? For
>> example Kyocera KC020, Miniscribe m8425 or Western General WD362.
>>
>>
> Yes, you can use all these disks- provided that your controller is ok.
> I'm testing these MFM hard disks on my old 80486 IBM AT with an
> Adaptec ACB
> 2310 MFM controller card.
> But: You have to know how to perform a low level format on the SUN
> controller first!
>
>
>> Or even better, does an adaptor exist for MFM to IDE? I couldn't find
>> one by doing an internet search.
>>
>>
> No, there is no such adapter- as far as I know.
> Choose the IDEFile instead- it's offering full future Widget
> compatibility
> as is fully Profile compatible (5 MB and 10MB).
>
>
>
>> However, for the life of the machine, I still believe the IDEfile is
>> the best option for the future. I should start thinking seriously
>> about this option, otherwise 7/7 will be lost to my machine for ever.
>>
>>
>
> Yes, I'll recommend you this controller- it's really great!
>
>
> Helmut
>
>
>> Thanks
>>
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Received on 2005-11-04 00:52:35