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  1. I thought the original design dougg3 made used standard eeprom chips that you can pop in and out. I believe that design is open source. There was someone who didn’t know what they were doing trying to undercut his later 8mb design, which is somewhat difficult to make for a hobbyist anyway, but it didn’t materialized. However, that one requires a specialized programmer. I think that design is also open to make yourself, but the chips are hard to find for a reasonable price.
  2. tt

    Carrera040 Info / Hacking Thread

    Yes, V1 from that archive. I am running System 7.5.3 with the 1.8b1 extension. I think the ROM is based on a IIsi and has patched the ROM/RAM check and has a boot disk, the ROM SIMM was built by Doug. It looks like you are running an older OS, I wonder if you might get to a further debug point if your try a later one?
  3. tt

    Carrera040 Info / Hacking Thread

    @GeekDot I am not sure if I followed what you did, but I tried v1 control panel (linked on the first page) and the Startup Carrera extension with a 32-bit clean ROM. Here is the screen that came up:
  4. tt

    Carrera040 Info / Hacking Thread

    I have a Sonnet branded version of the IIsi adapter and it looks almost the same as the MicroMac version, except it is missing the capacitor through-holes. I am guessing that the Mobius Speedster I have would work with that adapter. I think the Sonnet 040 accelerator looks different than the Mobius/Carrera boards though, so I am not sure about testing them out until I am more certain the adapter is compatible.
  5. tt

    32-bit Clean ROM vs MODE32

    Turning off the RAM check is a nice feature. I also like having an OS so I can boot up in case something happens with a disk image or I need to switch from a patched OS to an unpatched one while testing hardware. I can see why you'd want to stick with the regular logos. I have one that has a pirate computer logo and it is somewhat annoying.
  6. tt

    Carrera040 Info / Hacking Thread

    Cool, I'll try to give this a shot with the Mobius Speedster. Will it work with any IIci Cache to 030 PDS adapter? I am not sure if mine came with an adapter. I think if it did, it looked like the 2-slot adapter with no chips onboard. What about the Sonnet 040 accelerator, is it the same pedigree?
  7. tt

    Carrera040 Info / Hacking Thread

    What was hacked and why isn't it tested? I think I might have this accelerator or maybe it is a Mobius Speedster, but those are the same thing?
  8. It works ok with a stock ROM, but once I switch to a 32-bit clean ROM and re-patch the OS, it won't shut down properly unless a real HDD is in the chain. I thought with all the custom ROMs floating around, there's got to be someone else that has experience with this configuration.
  9. Awesome development here! I am just reading through the threads here, so it looks like the compatibility matrix hasn't changed with this board compared to a TwinSpark right?
  10. tt

    Carrera040 Info / Hacking Thread

    I remember this topic, what happened to the thread/forum?
  11. I have been trying to use either a SCSI2SD V5 or V6 with a SE/30 (with hacked ROM) and it would not shut down properly. I kept thinking it was the sequence in which I patched and upgraded to System 7.5.5 and then one time I had a real HDD (68 pin type) in the mix and then it was able to go to the final shut-down screen. I remember reading about the OS waiting for an all-clear signal from the HDD, but I don't have the issue with System 7.0.1. Anyone have a similar experience?
  12. Is there a major difference in supporting 100 vs 10 Mbps? Would support for 68000 be similar to existing emulators like Basilisk vMac? Their emulation does have issues with fully supporting programs like the real hardware. The battery also helps keep time, but I guess you can use NTP to auto update every boot.
  13. Zane, I am not up to the particulars of this project, but it sounds really interesting and to answer your initial question, I'm interested in your future product. Is it more of an emulator than an accelerator board?
  14. I think you can play Lode Runner if you don't click the mouse in the screen (stick to key controls). Pretty sure I even played it on 7+, but I do remember it crashing by clicking the mouse. Maybe there's a fix....