kefkafloyd's latest activity

  • kefkafloyd
    kefkafloyd replied to the thread LC520 Overclock.
    Of note, there's another way to identify boards: their serial schemas. I've noticed two different schemas for 520s: EZxxxxxxDY7 and...
  • kefkafloyd
    kefkafloyd replied to the thread LC520 Overclock.
    I believe on these machines the Gestalt is determined from some combination of CPU speed and sense pin detection on the machine's logic...
  • kefkafloyd
    kefkafloyd replied to the thread LC520 Overclock.
    I can also confirm that R80 is missing on my Rev A LC550 logic board for another data point. No idea if R80 is populated on a Rev B...
  • kefkafloyd
    Thanks for that video! The slight syncing differences between the CC and 520 boards (66.6 for the CC vs 66.7 for the LC 520/575) make...
  • kefkafloyd
    I believe it should look similar to the LC 575 board with IIe card in terms of borders/geometry, but I'm curious about the refresh rate...
  • kefkafloyd
    @JDW, That's interesting. I assumed that a CC stock board to behave the same as a Mac TV/520/550/575 board in terms of standard Mac...
    • mac IIci video timing.png
    • mac LC III video timing.png
    • lc520 timings 1.png
    • lc 520 timings 2.png
    • mac LC video timing.png
    • lc520 IIe 1.png
    • lc520 IIe 2.png
    • lc 575 apple IIe.png