JDW's latest activity
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Hey Guest, MARCHintosh 2026 is upon us. Check out community projects, join GlobalTalk, and have fun!
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JDW replied to the thread LC575 computer killed LC520 motherboard! 😭.@David Cook Thank you for your ongoing advice. I have DeOxit D5, but in my experience with using it on SE/30 connectors (Analog Board... -
JDW replied to the thread LC575 computer killed LC520 motherboard! 😭.ROM CHIPS I meticulously scraped both the outer and inner sides of every single pin on both ROM chips (which took a heck of a long time...
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JDW replied to the thread LC575 computer killed LC520 motherboard! 😭.Understood. Thanks. I suspect "unmodified body" is key here. I have the 84V Mod installed. As I speculated in my video, that is...
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JDW replied to the thread LC575 computer killed LC520 motherboard! 😭.@David Cook I really appreciate the time you took to do that TechStep testing and provide a detailed report. Thank you! I’m getting...
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JDW replied to the thread LC575 computer killed LC520 motherboard! 😭.@Garrett Thank you for your advice. I actually had removed both ROM chips and re-socketed them at the time I recapped and overclocked...
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JDW replied to the thread LC575 computer killed LC520 motherboard! 😭.Last but not least, I tried my TechStep. I tried to enter TestMode but the TechStep responded saying ADB communications failed. Sadly...
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JDW replied to the thread LC575 computer killed LC520 motherboard! 😭.I'm not testing the LC520 board inside my CC Mystic again. I removed the RAM and VRAM SIMMs, as well as the socketed FPU. I installed...
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JDW replied to the thread LC575 computer killed LC520 motherboard! 😭.@David Cook CUDA chip PIN-3 scope measurement (LC520 board with PRAM battery only)... CUDA chip PIN-4 scope measurement (LC520 board...
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