Groups > comp.sys.ibm.pc.hardware.misc > #128

Re: IBM PS/2 Model 80 (8580-071) restoration

From	Bob Eager <news0009@eager.cx>
Newsgroups	comp.sys.ibm.pc.hardware.misc
Subject	Re: IBM PS/2 Model 80 (8580-071) restoration
Date	2023-03-09 09:05 +0000
Message-ID	<k6tlr6FugeuU21@mid.individual.net> (permalink)
References	<tubmmb$fpk$1@tncsrv09.home.tnetconsulting.net>

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On Wed, 08 Mar 2023 21:18:10 -0700, Grant Taylor wrote:

> I acquired an IBM PS/2 Model 80 (8580-071) today and am looking for
> advice on what I should do to check it out before, during, and after
> applying power for the first time.
> 
> I'll try to get some pictures if anyone is interested.
> 
> The label near the power switch says that it's an 8580-071.  I have no
> idea how that compares to the hardware that's in it.

It's one of the ESDI disk based machines, originally shipped with a 70MB 
hard drive.

> There are two full size (5¼) hard drives, the controller card.  I don't
> know what type of drives they are yet, they look to be MFM / RLL like in
> that they have the common cable and a per drive cable.

ESDI, as above.

> There is a video card that has a daughter-card in the same slot like a
> thick sandwich.

Probably an 8514 adaptor, or an Image Adaptor/A.

> There is another card that I don't recognize.  The card doesn't have any
> external connectors and it looks like it takes multiple (approximately
> 4"x4") daughter-cards.  I am wondering if this is a memory expansion of
> some sort.

Yes, it will be. 70ns SIMMs, max 2MB I think. But generic ones have to be 
'coded' with a blob of solder.

> There are two of what I believe are the memory boards between the back
> hard drive and the power supply.

They are faster memory. 2MB each in that model, I think. I don't think 4MB 
ones worked in the early 8580s.

> The battery is still in the system, but I didn't see any corrosion and
> it's away from the motherboard.

Easy to get; go to a camera shop. 

  http://www.tavi.co.uk/ps2pages/battery.html#72X8498

> Please share any pro-tips / gotchas / etc. that you think I could
> benefit from knowing.

That's probably all I know!

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Thread

IBM PS/2 Model 80 (8580-071) restoration Grant Taylor <gtaylor@tnetconsulting.net> - 2023-03-08 21:18 -0700
  Re: IBM PS/2 Model 80 (8580-071) restoration Bob Eager <news0009@eager.cx> - 2023-03-09 09:05 +0000
    Re: IBM PS/2 Model 80 (8580-071) restoration Grant Taylor <gtaylor@tnetconsulting.net> - 2023-03-09 09:18 -0700

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