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My IIci board looked bad as well. After recapping and testing each leg of those three chips for continuity, it wouldn't boot. I threw it in the ultrasonic cleaner, then it booted right up. I'm a believer in the ultrasonic cleaner now!

Awesome resource - thanks for posting! Are there more DevNotes for other models?

Well, interestingly enough, it is working just fine now. I think I might know what was happening...maybe. I put in a ROM-inator II to see if it would boot and it did with no problem. Restarted with external BlueSCSI (and ROM-inator II), booted with no problem. Hmmm. I then pulled the ROM-inator...

Right. I remember from seeing a Branchus Creations video that I needed to have a SCSI drive plugged in to the internal connector, which I did have at all times. There were four pins that connected directly to UD11 - all showed good continuity. There are 8 data pins that are shared with UD11 -...

I've got a IIci that I've recapped and cleaned. For some reason, it will not boot from SCSI - internal or external. I've tried known good HDs and BlueSCSIs. Nothing. It will boot fine from floppy. I've checked all of the traces from the SCSI chip with good continuity from each pin. I've also...

If you scroll down, you'll see many Apple IIs, etc. There are a couple of Bell & Howell's too. Not sure what the "Europlus" is. Apple II sold in Europe maybe?

Okay, thanks for clearing that up. I appreciate the help!

Oh, so these don't run to a capacitor or IC? They don't need continuity checking?

I'm trying to get this IIsi board working again and am currently checking continuity. Not knowing where each of the pins on the 68030 go, I referenced the schematic. There is a spot I am hoping someone can interpret for me. As shown in the attached screenshot, a bunch of pins go to an area...

Wow, thanks for the offer. I already ordered the one mentioned by @martinsmartin. Should be here this week. Glad I found this thread, though!

Any chance you have a link to where you got one of these? Anything special to wire it up? I have couple boards that need one...