Recent content by phipli

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    Mechanical issue with Miniscribe

    Unless you're very lucky with an angle grinder or bicycle tool, you might do best to ask for "circlip pliers". Get straight ones rather than 90 degree ones because it will be easier to push down. If they're not good enough, spanners for this kind of thing, you usually end up having to make your...
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    Identifying mystery macintosh SE Accelerator/upgrade card

    Good news :) I've seen that before with DOS cards, just re-seating the CPU got them running. Not an improvement, but it would open up the possibility of installing 16MB of RAM. The specific version of the card you have wont overclock sadly, in my personal experience. There are two variants -...
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    Who Am I... The Power PC Performas

    That's what started this - have a look back at my first post in this thread. The "Beige PowerPC" section is broken down into two categories, neither of which describe the 6200.
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    Mac IIci cache card

    Its the only way. They're invisible to software. The Apple ones are at least. Its easy to tell though, before and after is a double digit percent difference in CPU performance in something like System Info.
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    Period-accurate benchmarking tools?

    One more thing I use because it gives a very good comparison for a specific case, although it was a 1997 release, so a little out of your date range and only works on PPC, so isn't actually, in any way, meeting your criteria... but anyway, it is a useful thing for your toolkit! The game "MDK"...
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    Period-accurate benchmarking tools?

    So my thoughts are that it depends what your purpose is. As you say 1993 to 1995 that means you don't really need any of the ones that support System 6 and older, especially as they're often 68k code and don't benchmark PPCs with native code (some do, I'm not that bothered, I have other...
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    Who Am I... The Power PC Performas

    I think I agree with Old World / New World because that generally makes more of a software difference, although, immediately, the Beige G3 is kind of both by how Apple supported it. If I was being really picky, I'd say PPC (Nubus and early Performa PPC) / PPC Open Firmware (Beige PCI) / PPC New...
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    Identifying mystery macintosh SE Accelerator/upgrade card

    4.90v is a fair drop on one of these machines. I wouldn't assume that that wasn't the issue. It should work, but I wouldn't assume that is good. A lot of us with accelerator cards set the voltage so that it is 5.1v without an accelerator. An SE/30 (yes, different machine) wont initialise the...
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    Identifying mystery macintosh SE Accelerator/upgrade card

    What did the 5v actually read as to 2 decimal places?
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    Identifying mystery macintosh SE Accelerator/upgrade card

    I would assume the card has memory that worked at some point and is set up right. My assumptions would be that the contacts on the connector need cleaning, or that the PSU is a little bit weak and the voltage drops just too low with the card installed. Install the card, power on and then use a...
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    Identifying mystery macintosh SE Accelerator/upgrade card

    I'd be suprised if it was VGA - are you sure it doesn't have 9 pins? It does do video out - depending on the option yours came with... pause... yours is a Full Page Display (portrait) version I think, with the 57MHz clock. Some did Two Page Display, but they have something around a 100MHz clock...
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    Identifying mystery macintosh SE Accelerator/upgrade card

    Yeah, as others have said that looks like a Mobius. You can either use their drivers, or the GemStart driver works just fine with it too. Yeah, my Mobius came with a 68EC030 too. They don't need the MMU unless you're doing something that needs Virtual. I swapped a proper 030 into mine. I...
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    Comparing the Performance of a 6200 against the 6100

    Oh, no, you misunderstand :) You said yes, I was just apologising as it was so long ago and you might have forgotten.
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    Comparing the Performance of a 6200 against the 6100

    ... with SCIENCE OK, I don't believe this should be under Nubus Macs, but there isn't a section that really matches the architecture of the 6200, 6300, 5200, 5300 family of machines. About a year or more ago I spent a load of time doing comparative benchmarking of the 6200 and 6100 to try to...
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    Who Am I... The Power PC Performas

    Just out of curiosity, the LC / Performa category says to go to the Beige PowerPC section for PowerPC Performas... But then you go to the PowerPC forum section and get this : So, where does the 6200, 5200, 6300 and 5500, plus all the variants, sit? 🤣 Edit - I guess we could call them LC-PDS...