BlueSCSI does not boot Mac SE

[Snial]

You should read this: https://bluescsi.com/docs/Troubleshooting

EDIT:
and this: https://bluescsi.com/docs/Board-Jumpers-&-Config

Hi @zefrenchtoon ! Thanks for the help thus far. I've looked at both of those issues. I changed my SD card to a 64GB one that matched the speed setting (10). I formatted it with the special formatting tool on my MacBook Air M2, which took ages as it was over a USB 2.0 multi-memory card adapter. Then I added a pre-made image. When I tried it in the BlueSCSI it failed just as before. It doesn't crash if the PICO is powered by USB plugged into a Mac, but it does crash as described above when powered directly.

I think the next step is to try the discord server. OK, that didn't get very far. Clicking on "Accept Invite" just generates the error message in red:


Hmmm.

 

[zefrenchtoon]

Hi @zefrenchtoon ! Thanks for the help thus far. I've looked at both of those issues. I changed my SD card to a 64GB one that matched the speed setting (10). I formatted it with the special formatting tool on my MacBook Air M2, which took ages as it was over a USB 2.0 multi-memory card adapter. Then I added a pre-made image. When I tried it in the BlueSCSI it failed just as before. It doesn't crash if the PICO is powered by USB plugged into a Mac, but it does crash as described above when powered directly.

I think the next step is to try the discord server. OK, that didn't get very far. Clicking on "Accept Invite" just generates the error message in red:

View attachment 100022
Hmmm.

Hum this is very strange.
I will try to share your post on discord to let them know you have these problems.

 

[zefrenchtoon]

@Snial Message sent …

 

[zefrenchtoon]

Here is the answer:



Question: is your PSU clean ? Is the 5V rail strong enough ?

 

[Snial]

Here is the answer:
View attachment 100025


Question: is your PSU clean ? Is the 5V rail strong enough ?

It's a BlueSCSI v2 desktop that I intend to stick inside a standard SCSI enclosure, which I was doing to begin with. So, the intended chain of connections is: PowerBook1400 => Dock/SCSI adapter => Zip Drive SCSI cable (DB25 at either end) => SCSI Zip Drive => DB25 to Centronics SCSI cable => Pretty standard SCSI HD enclosure with its own power supply.

My initial tests prior to putting it in the enclosure appeared to work, they say to power it up via USB and no SD card and observe the 5x flashing sequence. Then reboot with an SD card in and check it doesn't do a 3x flashing sequence. I had done that, and I didn't see any activity on the latter test (but I'm pretty sure it had a steady green LED), so I though it was OK. I then I attached it to the SCSI enclosure and powered it with the Berg connector and of course it didn't show any activity, but a steady green LED. It was then, when I turned it off and checked the SD card I discovered it had crashed.

So, since then I've been using it outside of an actual SCSI enclosure and powering it over USB either via a Mac (which doesn't crash) or via a a USB power supply (e.g. an old Apple 2.1A USB-A PSU plugged into a USB-A to micro-USB cable). It's the latter case which crashes. It only has to power the PICO, the built-in BlueSCSI logic ICSs & the SD card in this case.

Does that help? I've added a discussion item!