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    Any hope for this SE/30 mb?

    Hi, I'm in the (hopefully) final stages of repairing a much worse battery-bombed SE/30 which another member described as "battery-nuked"! o_O Have a look here and see what you think. https://68kmla.org/bb/index.php?threads/battery-bombed-se-30-logic-board-can-it-be-saved.38518/post-419967...
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    SE/30 Boot Process - stuck at ~15% on progress bar. How to debug?

    Quick update: So I buzzed out the 8530 serial controller and found a broken PCB trace for A2 which I was confident must be the problem. A2 was one of the traces I had to repair between the CPU and ROM in order to get the machine to boot. Unfortunately after repairing the trace and powering the...
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    SE/30 Boot Process - stuck at ~15% on progress bar. How to debug?

    I couldn't wait until this evening... 😅 Well whad'ya know - it locks up at "Modem Test" after passing all the previous tests. Initially I got a bad keyboard and bad RAM error when running Snooper in 6.0.8 but when run in 7.1 from the ROM Disk, it passes these tests. I did notice on Macintosh...
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    SE/30 Boot Process - stuck at ~15% on progress bar. How to debug?

    Hi Bruce, that's an excellent suggestion because I think the serial ports are just about the only subsystem I've not been able to test either directly or indirectly. I did do a search for diagnostics software previously but never found Snooper. I'll certainly give that a try this evening...
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    SE/30 Boot Process - stuck at ~15% on progress bar. How to debug?

    Thanks for that suggestion but I can't see anything of that name in my list of extensions. I have also tried booting with extensions disabled (hold down shift during boot) and that yields the same result. By the way, this exact 7.5.5 image boots fine in Basilisk where it was originally prepared...
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    SE/30 Boot Process - stuck at ~15% on progress bar. How to debug?

    Another quick update: I tried swapping over the RTC chip from my working SE but that did not help. I also tried disabling the FPU by desoldering the chip select pin and pulling it up to 5V but that just caused a system error on boot up. I also received a ROM-inator Atom from BMOW since my...
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    SE/30 Boot Process - stuck at ~15% on progress bar. How to debug?

    By the way, I just realised a short time after my last post that @brayne is Bruce from Branchus Creations on YouTube and he has a bunch of videos on SE/30 and other repairs. I looked through a few of these to try to find one that mentioned the FPU but couldn't find any. These are multi-hour live...
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    SE/30 Boot Process - stuck at ~15% on progress bar. How to debug?

    Thanks, this is something that came up on Joe's Computer Museum channel on YouTube where he was fixing an SE/30 and is what led me to buzz out all the FPU connections. You can disable the FPU by disconnecting the chip select line. I was reluctant to try that as it involves desoldering the pin on...
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    SE FDHD ejects boot disks, won't acknowledge SCSI2SD

    Sorry for the delay in replying - looks like I didn't have email notifications set up for forum replies. I'm talking about the hard drive images for SCSI2SD not floppy images. It describes them here ( https://www.savagetaylor.com/downloads/downloads-macintosh/ ) in section 2.1 and 2.2 but...
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    SE/30 Boot Process - stuck at ~15% on progress bar. How to debug?

    I just wanted to add some more findings to the above. I can successfully boot 6.0.3 and once booted I can pull down menus, use Finder and Control Panel etc without issues. I can also access the floppy drive and hard drive without issues. During the first boot on 6.0.3 (disk image prepared via...
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    SE FDHD ejects boot disks, won't acknowledge SCSI2SD

    One thing I wanted to mention about the SCSI2SD disk images you created based on images from savagetaylor - are you aware of the difference between "volume" images and "disk" images? You seem pretty clued up so I'm sure you probably do but just checking you are using disk images.
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    SE/30 Boot Process - stuck at ~15% on progress bar. How to debug?

    Hi, I'm in the process of repairing a battery bombed SE/30 and have managed to repair enough of the PCB traces and vias to get it booting up partially. I'm using a SCSI2SD device with a bootable 7.5.5 system installed and it gives me the startup chime, happy Mac, "Welcome to Macintosh" and then...
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    Battery bombed SE/30 logic board, can it be saved?

    Just a quick update to say that I installed D1 and D2 and now have 5V on my RTC pin 8 but still can't boot past about 15% on the progress bar of the Mac OS Starting Up splash screen. I tried doing a PRAM reset and that seemed to work but still no joy. I tried loading System 6.0.8 onto my...
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    Battery bombed SE/30 logic board, can it be saved?

    I'm a 70's kid too and never missed an episode! :cool: I just hope my SE/30 doesn't end up running in slow motion like Steve Austin! :giggle:
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    Battery bombed SE/30 logic board, can it be saved?

    Thanks! 🙏 My D1 and D2 diodes just arrived 5 mins ago so I'm hoping to get them fitted this evening and see if I can get it to boot a bit further. 🤞
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    Battery bombed SE/30 logic board, can it be saved?

    Haha, I think you‘re absolutely right….but I had a secret weapon….naivety! 😅 Also, I had no idea that anyone was creating new PCBs so I did the natural thing by buying a stereoscopic microscope that cost almost twice what I paid for the SE/30 and a bunch of soldering tips and parts that cost...
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    Battery bombed SE/30 logic board, can it be saved?

    Hi - I’m tackling a very similar, battery bombed SE/30 and have managed to get it to boot to the “Welcome to Macintosh…” splash screen after many hours repairing tracks and vias, not to mention cleaning up corrosion damage. The worst thing is that the corrosion renders the solder “unmeltable” if...
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