Recent content by nekogahora280

  1. nekogahora280

    Accelerating an Accelerator - Total Systems Gemini 020 to 030 for Macintosh SE

    Thank you! I'll start packing it right away. I'm looking forward to you making great use of it and sharing the results with everyone.
  2. nekogahora280

    Accelerating an Accelerator - Total Systems Gemini 020 to 030 for Macintosh SE

    It’s sold out... Could it be that you were the one who helped me? If so, thank you very much!
  3. nekogahora280

    Accelerating an Accelerator - Total Systems Gemini 020 to 030 for Macintosh SE

    The board for sale had its 68030 and 68882 removed from an IIfx and transplanted, and the 1MB SIMM was sourced with a speed of 70ns or faster.
  4. nekogahora280

    Accelerating an Accelerator - Total Systems Gemini 020 to 030 for Macintosh SE

    Like you, I’ve also damaged a board’s condition by installing a high-clock crystal oscillator. Fortunately, after taking a few days to cool off and retest, it worked. I don’t think it’s likely to break easily. I believe 32MHz is probably the maximum tolerance for the component configuration of...
  5. nekogahora280

    Macintosh IIfx 68030/50Mhz???

    I remember that I removed the crystal a few times but It didn't start. That's the only way to get the original crystal It was plugged in and operated at 40Mhz. Today, IIfx has set out to become the next owner. Once you get the next one, replace it with a socket again. I'd like to try speeding up.
  6. nekogahora280

    Macintosh IIfx 68030/50Mhz???

    As shown in the first image of the thread, I put a socket on it so that the crystal oscillator could be replaced, and installed a used 100Mhz crystal oscillator. There's no startup sound. When I replaced it with an 80Mhz crystal oscillator, it started to start normally with the startup sound. It...
  7. nekogahora280

    Macintosh IIfx 68030/50Mhz???

    Is the method of clocking up just a modification of an 80Mhz crystal oscillator replaced with a 100Mhz crystal oscillator? All that's left is to cool the MC68030 with a small fan? Please tell me what you think.
  8. nekogahora280

    SE/30 with abnormal screen

    It seems like replacing all the capacitors might be the best approach. However, it also feels like it could be faster to look for a barely functioning unit among the junk items for sale. How popular is the SE/30 in its home country?Even during work, my mind is filled with thoughts like "Should I...
  9. nekogahora280

    Accelerating an Accelerator - Total Systems Gemini 020 to 030 for Macintosh SE

    I also have a Gemini II installed in my Mac Plus or SE. I replaced the 20 MHz crystal oscillator with a 33 MHz one as is and swapped the RAM for 70ns modules. I haven't touched the memory wait settings on the board, leaving them as configured by the previous owner. It's said that 4MB SIMMs can...
  10. nekogahora280

    SE/30 with abnormal screen

    I replaced two capacitors near the sound chip and one capacitor near UE8. The startup sound played, but the screen remained covered with bright scan lines and didn’t change. I tested the logic board in a working Mac SE, and it still showed bright scan lines, so I concluded the issue lies with...
  11. nekogahora280

    SE/30 with abnormal screen

    What is the cause of this SE/30 symptom? After replacing some of the electrolytic capacitors, the startup sound came out. I think it's a video problem. It seems to be reading the SystemDisk, but I think it's just that I can't see it on the screen.
  12. nekogahora280

    Macintosh IIfx 68030/50Mhz???

    Is simply replacing an 80MHz crystal oscillator with a 100MHz one the correct method for overclocking? Or is it just that my machine wasn’t compatible?
  13. nekogahora280

    Macintosh IIfx 68030/50Mhz???

    I have a board like this, but I got the cables to connect it with lost, so I can't use it for now. I've heard that IIfx can run at 50Mhz with this, but is there a site somewhere that has information?
  14. nekogahora280

    Macintosh IIfx 68030/50Mhz???

    I simply thought that since the crystal oscillator was 80 MHz, replacing it with a 100 MHz one would make it operate at 50 MHz. How was Dash 030 managing to operate at 50 MHz? I'm curious.
  15. nekogahora280

    Macintosh IIfx 68030/50Mhz???

    I replaced the crystal oscillator in my Macintosh IIfx from 80MHz to 100MHz, but there was no startup chime, and thinking I had broken it, I hurriedly reverted to the original, which then worked normally. Does simply swapping the crystal oscillator not work? After removing the crystal...