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HELP identifying a vintage motherboard - Page 2

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  1. #21
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    That would be tin plated RAM not silver correct? I only recall tin plated and gold plated RAM back then, and when you used gold plated on tin RAM sockets you might get corrosion.



    Anyway why the 50 age cutoff? I am 47 and used computers back then.

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  3. #22
    grouchyolddude started this thread.
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    I had a "web tv" box back in the 90s.
    "Some people try to turn back their odometers. Not me, I want people to know WHY I look this way. I've traveled a long way, and all of those roads weren't paved"-Will Rogers

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  5. #23
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    Quote Originally Posted by grouchyolddude View Post
    I had a "web tv" box back in the 90s.
    That's what I started with was a webt back when i was 18 in 98. I loved the thing. Even did some hacking webtv things to make it go into demo mode and such. Built websites with it, on and on. Then in 2005 rented a computer from a rental store. After paying exorbitant weekly fees, decided to build a computer. It was all plug and play, component based just like working on a car. I was a mechanic so came natural. I'm such a nerd I put a 32" hdtv i fixed from the trash in my bathroom for watching while soaking in the tub or taking the am crap!! I even fixed a broken laptop and made it headless (no screen) to plug into the tv for netflix and what not. Works awsome. Sorry if i said the wrong thing on the video card. Was a quick glance although I would teach yaself mighty quick on how to hook bare boards up for testing. There is still a market even for socket 7 boards as much as 150 and up. Just last year sold 5 socket 7 boards tested with picture proof of it fired up on the bench for 75 a piece and one tyan dual socket p3 slot board server for 200 that went to europe.

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  7. #24
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    i graduated high school 1979 and nobody had a computer....i heard they had them at the engineering college..drexel u....in the 80's they did start to catch on....cable tv was just starting too..mtv videos and espn...sports on tv during the day!!!! i was just starting to scrap...prices were low but contractors would leave copper or aluminum behind...wasnt worth it...and a lot of people werent doing it like they do now

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  9. #25
    grouchyolddude started this thread.
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    after several very thorough inspections searching for identifying numbers, I found this...

    [/URL]

  10. #26
    grouchyolddude started this thread.
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  11. #27
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    I had a look thru my motherboards with the RCA plugs on them, and did not find a identical board.

    There were two that were very close looking. One of them I have left everything still on it.
    It had the same CPU, but a 'turbo' version with some smd capacitors soldered to its surface and a Ali heatsink over that.
    I googled imaged for a pic but cannot find one.
    I only have one of these CPU so I left the board intact, I have about ten of those brown/goldish RCA socket boards, and a few green ones too.
    And a CPU on a fibreglass board with a plastic CPU on it.

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  13. #28
    grouchyolddude started this thread.
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    this board has a smal al heatsink as well. glued on. Ive ound a few of these same cpu .. but never a "turbo" model

  14. #29
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    So what was the best offer?

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  16. #30
    grouchyolddude started this thread.
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    It sold for $50.

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  18. #31
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    A bit higher then scrap

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  20. #32
    grouchyolddude started this thread.
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    Quote Originally Posted by unknownk View Post
    A bit higher then scrap
    if Ive learned anything here over the last few years, its 'run it across ebay search" before scrappin it

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  22. #33
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    Ah, found it. The turbo chip is actually a 'Overdrive' chip



    It comes from a board # GA-486VM rev.0. Serial#13443Y. 1993 with a Amibios 486DX bios AA3825527 (1992)

    The '486 on fibreglass CPU' is a Intel i486 SX. KU80486sx-25. C3180320. Sx683. Intel ©1989

    The other interesting boards I have are a,

    OPTi. p/n 65G4187. EC D26208H PCB ver2.22 . its odd because it has a very long 60 pin slot for a gold fingered board and a large CPU socket.

    Next up,
    Mitzi R241A437A1(that's on the rear side) top side R927A2350.
    This slots into a case and has a small onboard CPU MB15524 8630 Y13
    and 3 Gold faced windowed RAM.
    With a D8085AC chip,
    a MBL8051AH 127. F8320. 8631 z04, ntel'82 - fujitsu'84 chip (long with a embossed line on it)
    MB8464-15L, 8525 R72, BA chip, same line embossed.

    The last board.
    Has a big 499 CPU socket, the CPU has a Gold cap with two bolts sticking out, its broken though.
    O5/98. PN:10008299. C1. SN: D04308. ASM.PCBA AXP ,533MHZ
    P/N 10021249

    (I had to edit because I invoked a smiley on the 2nd last line @ SNO4308. )
    Last edited by eesakiwi; 03-15-2016 at 07:46 AM.

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