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  • luRaichu
    luRaichu replied to the thread Baby's first PCB.
    PCBs have arrived. I made a few small changes since the last time I showed the design. JLCPCB made five of these for $2.07 and shipped...
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  • luRaichu
    luRaichu replied to the thread Macintosh Color Classic - Intermittent Red/Other Colors.
    Then you've still got cold solder joints or a loose connection somewhere. Look again...
  • obsolete
    obsolete reacted to Boctor's comment on Boctor's profile post with Like Like.
    I was doing it purely for challenge, yeah. I could have sworn some of the Mac R128 cards had 16M and the same "R128P" GPU, but the bus...
  • Boctor
    Boctor commented on Boctor's profile post.
    I was doing it purely for challenge, yeah. I could have sworn some of the Mac R128 cards had 16M and the same "R128P" GPU, but the bus...
  • EXDosis
    EXDosis posted the thread Macintosh Color Classic - Intermittent Red/Other Colors in Compact Mac.
    Hi All! First post here, so please let me know if this would be better suited elsewhere on the forum! Somehow after many years of...
  • obsolete
    obsolete commented on Boctor's profile post.
    The first issue I see is that this PC card has two 32-bit SDRAM chips (64-bit bus) for 16MB, and the Mac cards have eight 16-bit SDRAM...
  • Phipli
    Phipli replied to the thread Power Mac 6500 USB and ethernet cards.
    https://68kmla.org/bb/index.php?threads/the-great-gazelle-pci-hack-thread-part-2.38360/post-467844 Run the linked program. It loads a...
  • Phipli
    Phipli replied to the thread Power Mac 6500 USB and ethernet cards.
    There is a bug in the firmware on 6500s that stops 'PCI Hubs' from working. The NEC chips actually register as more than one PCI device...
  • obsolete
    obsolete commented on Boctor's profile post.
    Oh my, this is an AGP card? Are you doing it just for the challenge? Otherwise, I would send you a Radeon 7000 for free. I have extras.
  • obsolete
    obsolete reacted to Boctor's comment on Boctor's profile post with Wow Wow.
    It's the Dell version of the 128 Ultra (Basically just an 02 suffix in the P/N instead of 01, but they use the same ROM) with 16 megs of...
  • A
    Arbee replied to the thread ROM diagnostic mode on a Wombat Quadra?.
    The PRAM value must be set and the SCSI pins must be bridged (actually I think just straight connected to Vcc/GND in the right pattern)...
  • A
    Arbee replied to the thread The Kanji ROM NuBus Card.
    Here. It's 2 16-bit wide chips, so it's likely the data is interleaved to make the 32 bits for NuBus.
  • A
    Arbee replied to the thread The Kanji ROM NuBus Card.
    Correct, the ROMs are 1MiB in size (2x 512KiB).
  • TrueNorthStrong
    TrueNorthStrong replied to the thread IIgs Vulcan repair adventure.
    I’ve been measuring off the molex drive power connector out the Vulcan PSU. I’ll next investigate voltages on the board itself, see if I...
  • Epictronics
    Epictronics replied to the thread Early Macintosh home brew 4MB memory upgrade board development.
    Ok, so I got it working :) Unfortunately, it seems to have a compatibility issue with the 128k shared board. When installed in a 512k...
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