Worth of an SST Board after cleanup?

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robfeli007
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Worth of an SST Board after cleanup?

Post by robfeli007 »

How much is an SST board worth these days, considering how difficult if not impossible it is to find them? At least til you get one in a Mega ST, TT, or Falcon.

In my case, I managed to clean up the board after removing it from a severely mouse-damaged Mega ST4 (it will be going to e-waste) and there were no lifted or damaged traces. I've got a head-worn magnifier with light attached so I could find other places I had to clean other than what I could see normally. The SIMM sockets were spared the major damage. All that needs to be done is to replace the sockets that had the chips' legs rust off, which would be the ones holding the TOS, oscillator, 68030, 68881, and a couple others. This is quite a bit more work than I'm willing to do.

If this is in the wrong discussion area, please move it to the correct area.
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DoG
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Re: Worth of an SST Board after cleanup?

Post by DoG »

Clean or not doesn't matter really. Non working needs great photos to determine if it is even worth to begin to start to bring it back to life. It sound that it needs a lot of work if it had that much corrosion.

Working unit is another thing.

It is worth exactly how much someone is willing to pay for it really. It is rare, that is for sure.

EDIT: It's a gamble since there is GAL and such on the board I presume. If those are not working the whole board is trash.
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exxos
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Re: Worth of an SST Board after cleanup?

Post by exxos »

What's a SST board ?
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
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DoG
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Re: Worth of an SST Board after cleanup?

Post by DoG »

exxos wrote: Wed Dec 30, 2020 11:36 pm What's a SST board ?
Old Accelerator board for Mega ST by Gadget by Small. 68030, FPU, fast ram, TOS on board. Running at 33MHz. Without cache memory though so not that fast.
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exxos
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Re: Worth of an SST Board after cleanup?

Post by exxos »

Cool.. A 030 CPU has internal caches.. Plus stuff running in fast ram should fly at 33mhz. A TF536 runs 50mhz with fast ram so it would be a fair bit faster. No fpu , but like anyone's going to use it anyway.
https://www.exxosforum.co.uk/atari/ All my hardware guides - mods - games - STOS
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
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DoG
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Re: Worth of an SST Board after cleanup?

Post by DoG »

exxos wrote: Wed Dec 30, 2020 11:54 pm Cool.. A 030 CPU has internal caches.. Plus stuff running in fast ram should fly at 33mhz. A TF536 runs 50mhz with fast ram so it would be a fair bit faster. No fpu , but like anyone's going to use it anyway.
I guess. It matches a TT in speed at least.
robfeli007
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Re: Worth of an SST Board after cleanup?

Post by robfeli007 »

Here's three shots. First is before I cleaned it. Second is afterwards. Third is after I tried taking off some of the chips.

before_clean.jpg
before_clean.jpg (108.24 KiB) Viewed 2832 times
after_clean.jpg
after_clean.jpg (104.69 KiB) Viewed 2832 times
after2.jpg
after2.jpg (107.86 KiB) Viewed 2832 times
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derkom
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Re: Worth of an SST Board after cleanup?

Post by derkom »

I had a SST-equipped Mega 4 many years ago, and really enjoyed it. Certainly it was a massive step up from a regular ST, and I wasn't anywhere close to being able to afford a TT. :D

In recent years I've regretted selling it, but I did so in order to be able to afford my Falcon, so I don't really regret it too much. :lol:
czietz
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Re: Worth of an SST Board after cleanup?

Post by czietz »

@robfeli007: I assume you're talking about this SST Board that has been posted in multiple forums already?

https://www.atari-forum.com/viewtopic.p ... 63#p409363
https://forum.atari-home.de/index.php?a ... 8092;image

"Corrosion" would be an understatement. Even after cleanup it's highly unlikely to work. To be honest with you, I fully agree with what @mikro told you in the Atari-Forum.com thread.
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frank.lukas
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Re: Worth of an SST Board after cleanup?

Post by frank.lukas »

electronic scrap
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