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  1. jmacz

    Quadra 800 (Wombat) overclocking

    I did a crystal change with the stock CPU. Been running great at 40 with no serial port issues.
  2. jmacz

    Macintosh SE sudden death: burned chip on logic board + suspected analog board capacitor leakage

    You should be able to test the resistor. The yellow/black wires are to the fan. The thing you are referring to as glossy is just hot glue. There is a bunch in that area to hold the caps rigid as well as the fan wires.
  3. jmacz

    interesting haul so far

    Congrats! Lots of fun projects there.
  4. jmacz

    System 7 - Extension that shows internet connection status

    Depending on what the OP wants, you could avoid the complexity and do something basic like have the extension attempt to ping a well known “Internet” service (e.g. Google’s DNS at 8.8.8.8) and just infer general public Internet connectivity if you can reach it.
  5. jmacz

    Would someone with a Quadra 700/900/950 be willing to test a program for me?

    Quadra 800 (System 7.6.1 .. overclocked to 40MHz) First one just after running the test. Second one with moving the mouse around while its running the tests.
  6. jmacz

    Would someone with a Quadra 700/900/950 be willing to test a program for me?

    Attempted to run the test on my Quadra 840AV but every time I launch the app, the whole system locks up. This machine is running System 7.6.1 and is a vanilla Quadra 840AV.
  7. jmacz

    Would someone with a Quadra 700/900/950 be willing to test a program for me?

    Quadra 950 (System 7.6.1) This first one is just running the test and that's it. This second one is moving the mouse around the entire time that the test is running.
  8. jmacz

    Would someone with a Quadra 700/900/950 be willing to test a program for me?

    Quadra 700 (System 7.6.1 .. has Bolle's quad doubler)
  9. jmacz

    Would someone with a Quadra 700/900/950 be willing to test a program for me?

    PowerBook 540c (System 7.6.1, overclocked to 40MHz and has full 040 with FPU)
  10. jmacz

    Would someone with a Quadra 700/900/950 be willing to test a program for me?

    IIfx (System 7.1.1) I know you didn't ask for it but it was set up on my desk so thought might as well. Apologize for the cursor being there, didn't notice until after I uploaded the picture but the values underneath it are zeros.
  11. jmacz

    Would someone with a Quadra 700/900/950 be willing to test a program for me?

    PowerBook Duo 280c (system 7.6.1 - overclocked to 40MHz - has a full 040 with FPU)
  12. jmacz

    Would someone with a Quadra 700/900/950 be willing to test a program for me?

    I don’t have time until this weekend. But if no one else gets it done before me, I can do it for a PowerBook 500, PowerBook Duo, Q700, and Q950.
  13. jmacz

    Floppy disks mount duplicated on Mac 512K

    If I remember correctly there are two enable signals, one for internal and one for external, both from the IWM. Curious if they might be shorted causing the internal to respond as both external and internal. Or maybe something’s wrong along these lines with the IWM. I think there is a shared...
  14. jmacz

    Durosity’s conquests and collection

    Nice!!! Congrats!
  15. jmacz

    PowerBook 540c - Did a thing (OS 8.6)

    🤯🫣
  16. jmacz

    PowerBook 540c - Did a thing (OS 8.6)

    Yeah that looks pretty cool. I also finally got a PowerPC card but I am still running 7.6.1. I think I will always be a System 6/7 person.
  17. jmacz

    Tiny Turbo Development: Like Spicy O'Clock for Power Macs (or anything with a half-can oscillator)

    Wow, this is so neat. Love threads like this. I don't know enough in this space to contribute but going to be watching this with much interest :)
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