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  1. T

    SE/30 logic board replacement woes

    Okay so here's where I'm at now. I have checked all three oscillators on my oscilloscope. They are all at the frequencies they should be. I have removed both via chips, and the swim to try to see if the CPU would walk the bus. I am still not getting address bus activity. I have removed the glue...
  2. T

    SE/30 logic board replacement woes

    Haven't had a chance to do any diag yet but here is where I am with the board right now.
  3. T

    SE/30 logic board replacement woes

    Ok, so I am down to the lowest level I can be from your post. I still have a simasimac pattern but it is different. I am letting the board take a good long soak in alcohol to see if anything changes. I tried redoing UH7 since the pattern looked similar to yours but I got the same thing. I will...
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    SE/30 logic board replacement woes

    Follow up question to this. Is the FPU also necessary?
  5. T

    SE/30 logic board replacement woes

    That's awesome. I wasn't expecting the first reply to be so thorough haha. Thank you so much. I am gonna give this a shot. I have video now so I at least know all of that circuitry is working. I will update soon on the status. I have a power Mac G5 quad that I am trying to reverse engineer the...
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    SE/30 logic board replacement woes

    Tl;Dr I need to know the bare minimum that needs to be populated on a SE/30 logic board for it to boot. I don't need it to be able to do anything except show me a question mark. Hello everyone. I apologize for what surely will be a huge lack of etiquette on my part. It's been 10+ years since I...
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