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Way back in the day, @max1zzz was tinkering with getting the floppy drive header working in an iMac and we discovered that Mac OS ROM 1.1.5 was the last one to contain two floppy-related drivers: .Sony and .MFMFloppy. I didn't really know what I was doing (I still don't) but both of those...

It definitely works in MAME with command+power (power key is F12 by default I think) on several machines as of late last year. I worked with Arbee to hook it up in most machines that use a Cuda: the LC III, 475, 520, 550, Color Classic, Mac TV, and Quadra 630, and maybe some other variants. I...

That's a good point. I do want to bring up one caveat with that approach, not relevant to this particular thread but something to keep in mind if anyone stumbles upon this discussion in the future. If you do the aftermarket PSU approach with the LC III, definitely make sure that you install C22...

When I recapped my Dyna Comp, I had to pull a bunch of components and clean them because they were coated in corrosion from the nearby capacitor leakage, and I wrote down info about them here...

Good to know, thanks! I guess Apple’s part guide was just plain wrong on that one.

Excellent write-up! The disk swapping that was required at startup without the Japanese ROM was crazy and really shows why they did this. Thanks for dumping this ROM and sharing it with the community! It's funny how people have dumped it in the past and claimed it was the same as the v2 -- they...

The screw is Apple part number 416-1412 according to the service manual: Looking in the Apple Service Programs Manual on Archive.org, it's identified as "Screw, M3.5x.6x8": I just pulled one out of one of my IIcis and measured it. I would agree it's a M3.5 screw with 0.6 mm thread pitch...

I wonder if you're thinking of my writeup of the II/IIx power circuit? The IIcx definitely isn't exactly the same but I think it's pretty close, the big difference being that the gates are powered by +5V trickle from the power supply instead of the batteries.

Ahhh, nice! Here's the CD it came from. I also found the Performa 575 in there, and the Power Mac 6100/60 and 8100/80:

Nice find! I wonder if there are any similar other pictures of other models hiding around on the internet somewhere...

Nice! In my head I'm envisioning something like this recreation of the Macintosh TV's original advertising. I was wondering the same thing. I'm sure there's similar stuff out there somewhere for the other models, if it hasn't been lost to time. Maybe there are some un-dumped CDs out there...

I recently bought a Performa 410, and found a couple of cool things on it. First of all, it's running System 7.1P3 and has barely been customized. All of the original software is there and nothing new was added except for a few fonts. The machine appears to have only been used for ClarisWorks...

If I'm not mistaken, I believe 7.1P3 is a system version that is currently unpreserved. The restore disk that Apple Authorized Service Providers could have had for restoring these models to the original 7.1P3 version (Market Software Series Volume 1) hasn't been found yet. You might have some...

Agreed, this seems to be evidence that the Duo is trying to do something before the ZuluSCSI is ready. That bus reset definitely wasn't showing up in the Duo's ZuluSCSI debug log earlier.

That's really interesting. If I'm not mistaken, the dock's SCSI (and its external SCSI connector) is a different physical bus than the internal hard drive SCSI, because the docks have their own SCSI chips and none of the pins on the dock connector have anything to do with SCSI. So it sort of...

I guess thinking about it further, if I'm understanding everything correctly, these two test results mean that what's happening with ID 1 on the internal dock drive is irrelevant. That's really, really weird, especially given that the ZuluSCSI debug trace doesn't show anything happening with ID...

I've been following your interesting research! Just a thought, what if you enable debug mode with both HD0 and HD1 active? I wonder if that'll print more diagnostic info about what else is happening with ID 1 that is presumably holding things up.

Out of curiosity, is the system version on the hard drive 7.1P3? It sounds like that's the original version that shipped on the 467, and due to the absence of System Enabler 316, I would theorize that it's probably something earlier than 7.1P5. All of the stuff in the Applications folder...

I wonder if there's an older doc somewhere that was written before version 2 existed. Maybe one of the earlier Inside Macintosh volumes? It might be easier to read. I certainly found Apple's docs confusing about what was expected after the ClipRgn opcode! If you scroll down further on that...

This documentation is still on Apple's site and I think it might help explain some of it: https://developer.apple.com/library/archive/documentation/mac/QuickDraw/QuickDraw-458.html The first red 0x01 is an opcode of ClipRgn, then the 0x00 0x0A is a length of 10. Following that is the bounding...