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Just to confirm, if you attach a SCSI device but still attempt to boot from a floppy, you get the grey screen, is that correct? So just the existence of a SCSI device on the bus stops it from booting?

I've done the same on my Mac Plus and it works a treat! I used a 1N4007 diode (because that's what I had at hand) and it works.

I don't suppose you could post some nice, clear hi res pics of both sides of the NuBus card please? I'd love to reverse engineer it.

I've figured it out (and made a pretty diagram). I've tested this in Snooper and it passes the handshake and data tests successfully. I hope it's of help to others.

Hi all, The Snooper software (originally made by Maxa, then later by Central Point Software) used to include a NuBus diagnostic card as well as a small, black, serial loopback plug for testing the serial ports. I'm not too fussed about the card, but does anyone have one of these loopback...

Your budget will play a big part in making a suitable recommendation. If you're after a cheap unit, here's my review on the Kaiweets KM601:

It's Bon-die. I promise you that if you come to Sydney and ask for directions to Bon-dee, you will get laughed at.

@Elemenoh I used to use sizes C and D, but have recently started using size B instead of C. Slightly easier to solder. I still use size D for the bigger ones though. I haven't updated the guides yet.

Tuesday 11th Jan 2021 I had a very late start to the 2022 PowerPC challenge, as I had non-stop work from the moment the challenge began. Some of this could have theoretically been done on a PPC, but it would have slowed me down, which wasn't really an option. Not to mention that the challenge is...

There are 2 options (that I know of). Either grab one from another SE board, or you can use a 342S0440-B PLCC ADB chip from a Mac Classic, and use this nifty little adapter created by @Kai Robinson.

Introducing the 2022 PPC Challenge! The gang from Mac Yak have been running the PPC challenge for a few years now, and the 2022 challenge is almost here! THE GOAL Use a Mac powered by a PowerPC CPU as much as you can for your day-to-day computing. Everything you usually do on your Intel or M1...

I got a little further into the boot sequence and the cursor was actually on the screen, but I couldn't move it and it would hang during startup. I replaced the ADB chip and that fixed it.

@Kai Robinson, no I was still able to see the cursor, I just couldn't move it.

@Kai Robinson, any ideas? It looks like he's getting the initial grey screen, but not advancing to the cursor.

If you look at it just the right way, the pattern is like one of those magic eye images!

That's not a laptop prone to capacitor leakage, so I'm at a complete loss as to what that liquid might be. As to trying to find a worth for an item like this? Not much. It's a bit new to have vintage appeal, but too old to be really useful. 10.7 (Lion) is newest OS you can put on it. If it were...

I could be wrong, but I think that's an 800K floppy drive in there too, so I suspect it's had a 512Ke upgrade. @patro85 I'd sure love to see some photos from inside that Mac!

You know I'm always happy to help if I can!

Some SE/30s have self-healing fuses, others don't. If the board has the flat, metal, rectangular type of fuses, they are self-healing, so if that's the case, it's probably not the fuse.

As mentioned by others, the 800K and FDHD auto inject drives are very similar. Are you perhaps referring to the manual inject drive? The one with the black flap at the front?