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PostPosted: Mon May 11, 2020 5:13 am 

Joined: Thu Feb 13, 2020 7:37 am
Posts: 74
Location: Flatlands of Kansas
Ok, here we go.


Attachments:
File comment: AST Moboard
5-10-AST Moboard2.jpg
5-10-AST Moboard2.jpg [ 496.39 KiB | Viewed 2666 times ]
File comment: Dell 486SX Moboard with a processor upgrade socket
5-10-Dell Moboard4.jpg
5-10-Dell Moboard4.jpg [ 598.53 KiB | Viewed 2666 times ]
File comment: ZEOS Slotted CPU board--I don't even remember these or what kind of processor this was.
5-10-ZEOS Slotted CPU Moboard3.jpg
5-10-ZEOS Slotted CPU Moboard3.jpg [ 407.01 KiB | Viewed 2666 times ]
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PostPosted: Mon May 11, 2020 1:49 pm 
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Location: Low DOS
All large socket

The Zeos workstations were x86 with a swappable boot Rom that allowed it to boot from a plug in card.
The workstations came outfitted with a 286 or 386 in the beginning but the plug in cards could be Motorola, MOS, etc.
Zeos also was known from somE strange, and awesomely kool, Portable systems.

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PostPosted: Mon May 11, 2020 3:00 pm 

Joined: Thu Feb 13, 2020 7:37 am
Posts: 74
Location: Flatlands of Kansas
Thanks for all that! I remember Zeos ads back in the early-mid 90s but I don’t think I’ve ever seen one. But back then I really only saw what PCs and laptops the Navy bought which was usually the cheapest junk machines.

So “green” boards... there is surely a physical reason for color categories. Given that, are old vintage dark green boards the same as newer lighter green?

I’ll post photos later today if you don’t know what I mean, but I’m sure you will know what I mean.


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PostPosted: Mon May 11, 2020 4:07 pm 
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That’s a two part question.
Quickly addressing sorted colours, it is one place Chris and I disagree somewhat. He’s not at all wrong... it’s just the nature of the business.
Colourful motherboards are generally seen as inferior; most are. Unfortunately that catches some very high end gaming boards in the mix. It’s just the way it is.


The second part is itself a two part answer.
First and easiest is (2 parts again) colour and dye fade. And chemical separation.
The former, all dyes fade over time. The latter is notorious for collectors: and can easily be fixed. Place the item outside in direct sunlight on a DRY day. Watch the colours return to normal after a few days. No expensive dangerous chemicals needed. Very good for NES and Commodore cases.

The other aspect in play is the board material.
The oldest circuit boards were mostly or entirely wood. Quickly replaced with wood and plastic compositions to reduce fires. The plastic and chemicals designs vary and create different levels of light permeability and reflectivity. Green didn’t really catch on till the late 80s. I’ve seen old ibm systems with brown uncoloured motherboards.
Today the dye is left out only for cost cutting. It’s more for visual stimulation.
Making a brown board green screams “I’m better”. Where making a standard green board without the dye says you pushed a bit more by skimping on dyes. Some high end video cards are brown. Same with SSDs.

There’s more to dye than this (Electrical noise aspects, solder masking, oil resistance)
but that’s the most basic entry to it.

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PostPosted: Mon May 11, 2020 5:09 pm 

Joined: Thu Feb 13, 2020 7:37 am
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Location: Flatlands of Kansas
And I should have said I use the term “Vintage” here in a relative sense. Right now today, a P4 or dual core or quad core can be considered vintage if you need the latest and greatest horsepower. My use of vintage here refers to 1980s era stuff.

In my previous day job it meant anything no longer vendor supported for security updates.

So I’ll put all the shades of green together with maybe an 8086 board on top of a P4 board?

I only have a few that are any other color.


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PostPosted: Mon May 11, 2020 5:19 pm 
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There’s really no reasoning from a consumer standpoint for colour variation in shades of green. It’s simply the amount of mask (on top) and dye (board colouring).
Much like bright green from Ford is different from light green from GM despite using the same two supply base colours.
I may be able to pinpoint something more specific from photos though.

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PostPosted: Mon May 11, 2020 6:59 pm 

Joined: Thu Feb 13, 2020 7:37 am
Posts: 74
Location: Flatlands of Kansas
I've started weighing stuff and taking photos to put in email to Chris.

Here are photos of the green moboards.

A few other bits and pieces...

At this point I'll go with your answers to this latest batch, and then just sort, photo and weigh the rest for email to Chris.


Attachments:
File comment: Power supply boards. Some have two ICs, some have one IC and some have none. All transformers, copper inductors and heat sinks have been removed. Like the pile of junk, I can scrape off MLCCs, TFRs and probably get some value from aluminum caps and melt off the solder for another purpose, but I'd prefer if I can get something for it and just get rid of it. Otherwise I'm still throwing a lot of it in the trash.
5-11-PS.jpg
5-11-PS.jpg [ 493.44 KiB | Viewed 2659 times ]
File comment: Not sure what happened to this board with that broken chip. Those are not gold fingers.
5-11-Moboard2.jpg
5-11-Moboard2.jpg [ 437.86 KiB | Viewed 2659 times ]
File comment: Not sure if these pads are just brass or what, but I have about 20 of these from LeapPad educational toys. It would hardly seem there could be any gold there.
5-11-Leappad.JPG
5-11-Leappad.JPG [ 19.96 KiB | Viewed 2659 times ]
File comment: This DVR was literally beaten to mush. I salvaged the board with chips, but there are things missing.
5-11-DVR.jpg
5-11-DVR.jpg [ 507.92 KiB | Viewed 2659 times ]
File comment: I must've moved because it's out of focus but you can still see the color.
5-11-NewerLighter1.jpg
5-11-NewerLighter1.jpg [ 189.52 KiB | Viewed 2659 times ]
5-11-NewerLighter2.jpg
5-11-NewerLighter2.jpg [ 392.06 KiB | Viewed 2659 times ]
5-11-Vintage Dark1.jpg
5-11-Vintage Dark1.jpg [ 463.62 KiB | Viewed 2659 times ]
5-11-Vintage Dark2.jpg
5-11-Vintage Dark2.jpg [ 378.61 KiB | Viewed 2659 times ]
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PostPosted: Mon May 11, 2020 8:59 pm 

Joined: Thu Feb 13, 2020 7:37 am
Posts: 74
Location: Flatlands of Kansas
I almost forgot these guys--Peripheral or finger card?


Attachments:
5-11-WiFiBoards.jpg
5-11-WiFiBoards.jpg [ 310.67 KiB | Viewed 2658 times ]
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PostPosted: Mon May 11, 2020 10:42 pm 
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Location: Low DOS
Power) low grade
Large socket
Peripheral, barely. I’ve sent them before
One poor sad peripheral dvr
Have to measure but think large socket
Board bum
Board bum
Large socket
Gold finger card

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