Recent content by phipli

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    Software-only OVERCLOCK for LC475, LC575, Quadra 605

    I think I've found the version : Ignore the crazy high FPS - I was testing on QEMU (Quadra 800 emulated) on a "modern" laptop. The file was a bare sit archive, so I've wrapped it in a hqx to make it a bit more internet proof (sit files get corrupted if you send them over FTP sometimes...
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    Software-only OVERCLOCK for LC475, LC575, Quadra 605

    I recommend using the control strip instead. It has better timings, is compatible with 24bit addressing and is easier to use. Moving the resistor doesn't get you extra speed, it stops the computer crashing when you do sustained SCSI workloads like copying large files. Some machines aren't...
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    Software-only OVERCLOCK for LC475, LC575, Quadra 605

    Don't forget the R95 / R96 mod too - it is generally needed for reliable SCSI at higher speeds. Moving the 0R resistor selects between clocking the SCSI at the bus frequency, or F/2. Spec says that machines with a bus of 33MHz and more should have F/2. If you want more speed, switch out the...
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    Quadra 800 "Wombat" overclocking - options

    Do you have a heatsink on your CPU? What speed grade is it? Do you have appropriately fast RAM in your computer? I've not heard of anyone struggling to get 40 out of a 33MHz setup, but that doesn't mean there isn't things that would stop you, especially if there is an already marginal part in...
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    WomBOOST - Very Small Performance Boost for your Wombat

    Timings work that the faster your bus, the slower your timings generally, so what I've done is I've told it to use, for example, 25MHz timings when you're running at 33MHz, or 20MHz timings when you're running at 25MHz, assuming that you've not overclocked your computer and that your ROM is...
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    Who Am I... The Power PC Performas

    Completely agree, I was just not going to niggle about the groupings. But yeah... it isn't where I'd have drawn the line. To be honest, I'd have just grouped by CPU as shipped (601, 603, 604 / G3, G4 / G5) for simplicity because no grouping is ever perfect, and it is the only group that is...
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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?