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What System do you want to run? 6 or 7?

I experienced the behavior you described previously („blinking“ happy mac) also with an SE some days ago and finished up sideloading the bootstrap image. In my opinion the image isn‘t set up in a very special way…

This week the board arrived back home and works like a charm - thanks for your help guys and @Bolle!

Great!

Ah I see - you’re right. But there is an option for uploading and creating a cd disk image that can be mounted - all you need is the cd drivers installed. Otherwise use a blank drive image for mini vmac, copy the installer onto and upload the drive image using the rascsi web interface.

I‘ve experienced errors with unpacking various sit files from the internet too. I think they are often packed with stuffit >= 5. So I unpacked the drivers on a second Macintosh with OS X Tiger and transferred it via Zip-Disks to the SE/30 - maybe this could be an option if you‘ve a Zip drive and...

Hello, me again. After the hint of @LaPorta I decided to clean the board once again. After cleaning the board within an iso bath again, it now does no more boot from scsi - same behavior where I started from. Anyway, I did the Snooper tests @craig1410 recommended with the following results: - I...

Take a look at RaSCSI - it not only emulates scsi drives but also a Dayna Port. Works very well with my se/30 and se setup.

I‘ve cleaned the board a week ago with an deep iso bath and brushed it. Maybe I don’t got all dirt although the board looked good right from the beginning. I don’t know if the previous owner cleaned it before…

Ah great what kind of applications exist I never heard of :) Thank you - Unfortunately I‘m not at home this week, so I‘ll test that at monday…

A short clip to show you the actual behavior: Keep an eye on the displayed time…

Alright that is exactly what I measured on Y1. Sound is working.

I have checked Y1 (it’s the clock crystal, right?) with the multimeter and it shows the right frequency. At Y3 it shows zero.

@SuperSVGA In the meantime I‘ve dumped the rom installed on the es/30 and compared it using with serval dumps from macrepo. It’s hash matches with the MacII Roms. Seems to be good.

Strange things happened. After pulling out the logic board out to test some connections and putting it into the case again, it starts from the internal scsi drive. It connects to the network, can access all drives - BUT the time is ‚jumping‘ between random times and dates every time the screen...

Nope forcing a SCSI-ID does not work unfortunately. Nice idea to dump the rom and diff it, because I don’t have any physical replacement rom simm to test with… I‘ll try.

Just in case someone other is experiencing the same behavior I‘ll continue to log my debugging steps and insights. So, after checking some more connections, I dig a little bit deeper into debugging the scsi bus to see what happens. During boot/seeking for boot device the bus reports a sense...

Hi @Bolle I've check the connections 10<>6,12<>7,13<>5 and 43<>1 between VIA1 on UK12 and RTC on UK4. All connections are okay. Any other ideas? Thanks a lot...

I‘ll check this - thanks for the hint @Bolle.

Hello, I‘ve got an SE/30. The previous owner said, that it does not boot from scsi but shows the questionmark disk. After a short test I saw that the logic board does not work anymore. Luckily I cannot see any damages by leaking caps or battery sauce. I recapped it and now it behaves as...