Recent content by speakers

  1. speakers

    Macintosh LC III Bodge-Laden PCB

    It does require some soldering but it's very simple. See https://lowendmac.com/2014/overclocking-the-mac-lc-series/ A heatsink isn't really required. I did the mod and the cpu doesn't run hot .. but your mileage may vary.
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    Macintosh LC III Bodge-Laden PCB

    I got caught by this a few years back. It's a decoupling capacitor on the -5V rail. The original aluminum cap didn't care but if you replace it with a tantalum that'll draw a large current under the reverse polarity. The LCIII PSU won't complain, but the -5V line will droop to perhaps less than...
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    Asante Technologies 09-00061-00 Ethernet NuBus card Rev A

    See https://tinkerdifferent.com/threads/fixing-10base-t-on-more-ethernet-cards.2188/
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    Beige PowerPC G3 - IDE HardDrive Replacment?

    Re: 8GB boot restriction... Hhmm ..4? Beige G3s have OFW versions 2.0f1 or 2.4 and are not updatable (unlike the B&W G3). The 8GB boot restriction applies to both. Yes. See https://lowendmac.com/1997/beige-power-mac-g3-1997/ and https://lowendmac.com/1998/beige-power-mac-g3-1998/ .. and I can...
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    Beige PowerPC G3 - IDE HardDrive Replacment?

    Be aware that the Beige G3 can boot only from partitions in the first 8GB of the IDE drive due firmware limitations. I've had good luck with 64GB 40-pin IDE flash modules in my G3s.
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    Mac IIci cache card

    MacTest Pro will tell you whether the cache card is present and working. Also see the IIci Developer Notes for the memory addresses of the cache data and tag RAM that may be pokeable from MacsBug (I haven't tried).
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    Macintosh II SI capacitor question

    Seconded. Leakage eats resistors. For more details:
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    Macintosh II SI capacitor question

    Weak or totally absent decoupling caps like C20/C22, may not stop the machine running. In fact, a logic board could work with no decoupling caps at all, albeit unreliably! If those tiny ceramics have been elsewhere, in particular C10/C11, then that would explain no audio.
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    Looking for the document "Macintosh Worldwide Development: Guide to System Software"

    I see lots of hits for "LongDateTime" on archive.org. Have you trawled there?
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    New tool to remove capacitor and rust corrosion - the dental scaler!

    Interesting. I occasionally use a Braun toothbrush to scrub boards. And I've heard that using toothpaste can add abrasion. I'm also a strong advocate of dental probe tools to assist awkward desoldering. Perhaps I could finally like dentistry.
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    Restoring a Retrospect DAT/DDS backup: Attempting to crack my own password

    And a big shout-out to DAT tapes ... A few years back, my trusty SE's original harddrive flaked-out and the only backup I had was on old Retrospect DAT tapes. Of course, I'd lost any floppies containing the right version of Retrospect itself. Nevertheless, I downloaded a copy from...
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    Looking for help with Asante MacCON+ LC - Network Card

    in my case, yes, the fix was this easy to adjust a timer. But it looks like you have a later revision of this series of NICs which will require a different solution .. if, indeed, this is the problem.
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    Looking for help with Asante MacCON+ LC - Network Card

    Likely a known issue.. Check out this thread: https://tinkerdifferent.com/threads/asante-mc3nb-rev-g-nubus-nic-getting-10base-t-working.2040/#post-18843 And Glenn Anderson's webpage: https://www.mactcp.org.nz/ethernet.html
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    PowerMac 7100 and Linux (and NetBSD)

    Tried to fix it but quotes remain mucked up. The web editor isn't helpful :confused: >hwint3 is 211C0 but the A2 was 17135E0. Right.