Adventures with the Nixdorf 8870 Mini-Computer
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Second Chassis

14/6/2014

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Picture
I've previously stated that I've obtained three M25s over the last few years and number 3 pictured above is in a really sorry state. I've no idea what happened to it but it looks like it's either been dropped or a lorry hit it. You can see the crack down the top of the left-hand side. Also, both the top and bottom tier cages are bent. Amazingly the backplanes are intact and all the plates and disk drive were still working when tested in my main machine.

Anyway, this thing has been taking up valuable space so I thought it worth removing anything of value and scrapping the rest. Absolutely everything electrical has been removed including the fans and plastic plate-slot blanks. The outer shell will go to the scrap-metal people.

However, I have a second chassis that's in a perfectly serviceable state once it's been cleaned, so I've decided to construct a second machine.

I'll be taking pictures thought it's rebuilt process, but not during it's tear-down. This second chassis was absolutely filthy and mice had been living in it and I didn't fancy having to keep washing my hands to hold my camera just to take a couple of pictures. You will be able to view the re-build pictures in reverse if you want to see how to tear-down a system :)

As for what I'm going to do with it, it will replace my current chassis as I cut a couple of corners when cleaning it originally, and there are a couple of jobs that I wish I'd done.

Once this second chassis is up and running, I'll gut the first one for all the useful bits and either drop it on Ebay as just an empty chassis (at least it's clean), or off to the scrap metal dealer. Nobody except me seems to what this stuff anyway.



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    I'm a software developer, an engineer and I love vintage computers, but the 8870 has a very special place in my heart.

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