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Getting a BlueSCSI in the mean time. The odd part to me is the longstanding risk of SD card corruption without proper pi shutdown is NOT what I am observing. If it were that well-documented issue, I would have a non-bootable Pi. That is not the case here. It is merely corrupting the drive image...

My setup: Mac SE/30, 8mb. RaSCSI setup internally using RPi Zero W, only physical device on SCSI cable. Powered using molex 5v to USB connected to RaSCSI board. I am curious if others are running into this problem: Using the November release image on a 16gb SD card, I am successfully booting...

also, @Johnnya101 it used to have a physical drive, but i pulled it to setup RaSCSI. The shimmering happed at random whether the HDD was installed or not.

Yes, I did mean the yoke connector. More than one of the pins had cracked solder, so I reflowed all of them a long time ago. Tonight, I did it again and reflowed every pin of every connector on the analog board plus many others. I have not recapped the analog board, so I should collect the...

here is a gif version in case the video did not work for others

Quick status of the system: Logic board recapped, UE8 replaced, at least one trace from SCSI chip (D31) repaired with a bodge wire, ASC removed, cleaned, re-soldered, no-leak battery but replaced with CR2032. Analog board connector (J1? the one that always gets hot and melts/discolors)—had...

This has been a fun learning experience and confidence builder. I would definitely take on another SE/30 if I had one. The saga will continue now as I try to get RaSCSI working, going to replace the fan with something a lot quieter, probably recap the analog board eventually.

Thanks for the acknowledgement. I ended up making a much better bodge between the SCSI chip and VIA1 chip (shorter wire, easier connection point near the C11 axial cap). I really think this was a combination of problems for my SE/30 and I am somewhat amazed I was able to work through it...

I got a little excited too soon, as when i put the logic board back into the case, the SCSI drive failed to load. Booted fine from floppy. I did some testing with SCSI Probe and i can see the ID of the HDD, and the light flashes like it tries to mount, but it does not acknowledge there is...

Ok, so I don’t want to JINX anything, but this morning, I pulled my ROM out and inspected it—looks fine—then carefully put it back in. I glanced around the bench knowing I would need to clean some things up a bit to embark on a marathon continuity test session. On a whim, I decided to try...

Replying to my own message here. . . Having done some searches across this forum, I am learning that what I see is the good old “simasimac” screen now, which has multiple root causes, but the general consensus for diagnosing it is that the CPU cannot communicate with the ROM, so there is maybe a...

After a long break (and a few new hobbies in the interim) I am back with an update and hoping to get some more advice for next steps. After removing the ASC, cleaning, and resoldering it (twice) I am confident in that work after a thorough inspection. Given the system still showed the odd...

Just used MacIPpi to update a Powerbook 5300cs from 7.5.2 to 8.6. The install ran entirely over LocalTalk, through an AsanteTalk bridge using the MacIP disk on the raspberry pi where I put the installer files copied from my MacOS 8.5 CD using a modern mac on ethernet. It was slow, but...

After a very nice clean and a good warm up in the oven I have a clean, dry logic board that still exhibits “Chains of Love”.

One change was the fact that this system originally had 8mb of RAM, but over time, I have removed the SIMMs and ROM to clean the board, and most of my troubleshooting has been with only 4mb on board. One thing I did was add the other 4 sticks. It was the first thing I thought of that might be an...

I can see moving forward with troubleshooting audio. The video setback—I could address that too, right? One thing at a time. But this boot issue now has to be the priority now if I am to make any more progress. I think maybe I will give the entire board a good soapy soak, rinse and dry. I did...

I did check for that probing adjacent pins along each side. It did boot once after replacing the ASC.

ok, so i have an update. It’s good news and bad, which is frustrating how the video keeps evolving. I was able to bridge the pad for pin 2 on the ASC to restore the trace no problem. It worked great, stayed nice and flat, and buzzed cleanly back to A(5). This was the spot highlighted in green...

New development for sound! With the ASC removed, I started buzzing the lines from UE10 to various other components. I definitely found a problem: Pin 2 does NOT connect to Address line A(5)! I think I can see the failure point with the chip removed. Looks like corrosion of the trace right as it...

Given that I am also troubleshooting sound issues, I have removed the ASC chip using de-soldering alloy. This, along with appropriate cleanup was much easier than I expected it to be  and I would not hesitate to use the technique to replace other ICs (video muxer(s) perhaps? In any case, I...