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Recent content by Nixontheknight

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    Killed an MDD logic board

    I'm ok with the risks as long as it gets my MDD working
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    Killed an MDD logic board

    The logic board is a 1.25GHz board so it's going to be 167, and the 1GHz card is 133MHz bus
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    Building a new LocalTalk (and LToUDP) to Ethernet gateway

    Will you be selling this or will you provide the files to make the PCB?
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    Killed an MDD logic board

    I'm gonna try changing the bus speed on the 1GHz card
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    Killed an MDD logic board

    The PSU is known good, I have not done a PRAM reset but I believe the bus clocks are different from the card to the motherboard, and that's probably what's tripping it up
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    Killed an MDD logic board

    I turned it on with a 1GHz CPU card and the light just flashes and fades away, then it's silent, then the fans ramp all the way up
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    Killed an MDD logic board

    A few months ago, I was trying to overclock my MDD (rev A from 2002) from 1.25GHz to 1.5GHz, so I could get DiscordPPC to run properly, but I accidentally overvolted the CPU card and killed the logic board. Can this logic board be saved or should I just buy a working one?
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    LC Power Supply interchangeability?

    the 040 LCs don't need more oomph. Byte Knight (the sysop of CQII) put an LC 475 logic board inside an LC III, and it has worked with the LC III's power supply
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    LC Power Supply interchangeability?

    AFAIK, the power supplies from all pizza box LC machines are interchangeable. I have an LC III that has a power supply that has the same model number as the power supply of an LC II
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    Concept: LC Microdrive III: a Rom for LC III users to boot without a hard drive for recovery purposes

    yeah, it would be nice to make Microdrives for all the Macs that have extra pads for a ROM or an extra ROM slot
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    Concept: LC Microdrive III: a Rom for LC III users to boot without a hard drive for recovery purposes

    As i was looking at my LC III today, I found out there’s some unused pads for a ROM of an unknown capacity, then I remembered the rominator ii and Macintosh classic which both had bootable systems in rom that were accessed by pressing or holding keys on startup. Would that be possible to make on...
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    LC475 memory issue(?)

    as I said, try seeing if the traces that go to those chips are interrupted somewhere, like they're cut, corroded, etc.
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    LC475 memory issue(?)

    The modem port is probably geoport. And as for the memory, I’d tone out the connections for the RAM using a multimeter in continuity mode/diode check
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    PowerBook 520c Screen Issues

    it's common for ribbon cables in laptops to break, so I would say replace the ribbon cable going from the logic board to the display
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    G4 7455 or 7457 CPUs needed

    I have a 1.25GHz MDD dual CPU card from a rev a MDD from 2002 that I blew up due to over voltage. Does anyone have any spare 7455s or 7457s I can use to put on the card? Thanks in advance
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