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Thread: A4000TX ATX Amiga motherboard

  1. #41
    Amibayer! rikbliz's Avatar
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    Oh my lord this is amazing!!

    I would be interested in buying one

  2. #42
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    Interested in buying if it becomes available.

  3. #43
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    Wow! Kudos for this work! I, too, am interested in buying if it becomes available.

  4. #44
    Jack of Many Trades, Semi-Master of Some thebajaguy's Avatar
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    Saw a few questions above I think I can help with a few answers:

    1) A1200 donate chips? You will need more chips. Super Buster, Ramsey, Fat Gary, RTC, a number of TTL parts, plus likely CPU parts or a CPU card. You won't re-use Gayle, 68020.

    2) Omit 68030/68882? The Alice board can be configured to not have a CPU, so my guess is it is similar here. A standard A4000T (And some A4000D's) don't have a CPU, and expects a CPU card.
    A500/A1000/A1200/A2000(4x)/A3000D(2x)/A4000D(under repair)/A4000T (all loaded....Toys...Toys...Toys...)
    Former GVP Tech Support 1989-93 - The beatings will continue until morale improves...

  5. #45
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    Awesome work! Maybe I am just imagining this, Hese, but, are there quite a few less passive components on this board than on a standard 4000 and the Alice? Maybe it's just my old eyes, but I could swear there are fewer pads for MLCCs and TFRs than on the Alice PCB I am currently assembling.

  6. #46
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    Very nice,I'd be interested in a board also.

  7. #47
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    Wonderful!!! Hese, you are our hero!


    As many other people has said (and with my experience on A4000 Alice), please you could consider:


    1.- 112 MB Hack (or at least 64MB Hack that is very very simple to implement. One more GAL needed).
    2.- Don't remove 68030/68882, it is a very good way to have a basic Amiga 4000. For those that don't want to use it, you can let it un-populated.
    3.- Let space for all GALs in order to have PLCC sockets (THT preferably).
    4.- You could include a "ratte auto monitor switch" for the VGA, it needs a very few PCB surface. Will every one have RTG?
    Last edited by shanshe; 22nd August 2018 at 14:10.

  8. #48

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    I'm interested in this too. But I have no soldering skills and I'm unsure how I would get the parts. Where does one buy the cpu/chips needed for this.

  9. #49
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    Quote Originally Posted by kirk_m View Post
    Awesome work! Maybe I am just imagining this, Hese, but, are there quite a few less passive components on this board than on a standard 4000 and the Alice? Maybe it's just my old eyes, but I could swear there are fewer pads for MLCCs and TFRs than on the Alice PCB I am currently assembling.
    Now Hese seems to use SMD resistor packs.

    - - - Updated - - -

    Quote Originally Posted by Phero View Post
    I'm interested in this too. But I have no soldering skills and I'm unsure how I would get the parts. Where does one buy the cpu/chips needed for this.
    CPU 68030 -> ebay.
    CPU 68060 -> ebay, amibay.
    Custom chips -> ebay, amibay, other online shops (like icomp.de, amigastore.eu, analogic.co.uk, etc.)
    Electronic components and connectors -> mouser, digikey, etc.
    Last edited by shanshe; 22nd August 2018 at 14:48.

  10. #50
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    Conratulations Hese, another impressive offering.

    Not sure of the usefullness of the ISA slots. The inclusion of PCI slots would have been better. But I guess pcb realestate limitation would have procluded the circuitary required. However could a variant be produced that had the PCI slots on, which could then be activated by pugging in a Elbox Mediator card?

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