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  1. David Cook

    HD20 Init for Mac II, IIx, IIcx, and SE/30

    Way back in 2008, @JDW pointed out the following article in which an unnamed init could enable a stock-ROM SE/30 to mount an HD20 hard drive (or Floppy EMU emulating an HD20). https://web.archive.org/web/20030303085358/https://docs.info.apple.com/article.html?artnum=6182 "Additionally, we have...
  2. David Cook

    IIsi w/ROM - repair and photos

    Macintosh IIsi computers don't sell for as much as other Macs from the time period. IIsis tend to have motherboard capacitor damage and the power supplies must be recapped urgently. They have medium speed, one slot, and built-in video, so they are sweet little machines if you get them working...
  3. David Cook

    Does the 68LC040 use the same die as the full 68040?

    Does anyone know if the 68LC040 uses the same die as the 68040. I mean, is the LC just a binned version of the full 68040 where the FPU failed testing? I suspect the 68LC040 is actually a different die, given that there seems to be completely different mask versions than the full 68040. Here...
  4. David Cook

    Quadra 630 Boards and Misc

    I have a number of Quadra 630 computers. Recently, I picked up a spare board that motivated me to take a closer look at some of the differences. Thus far, I have found three different boards in Quadra/LC 630 series of computers: 820-0548-B (the most common). One double-bank RAM slot. One...
  5. David Cook

    68k New application: Tiny Transfer (BinHex .hqx conversion and file transfer)

    Hello everyone, For bulk file copying on older Macs, nothing beats emulated hardware such as Floppy Emu, MacSD, ZuluSCSI, and so on. However, for sending small files back and forth, swapping the micro SD card in and out can feel a bit like sneakernet. I've written a small application that runs...