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I tried hacking the enabler so that my physical 6100/60's Gestalt ID (75) was in the list, but that caused it to hang at the Welcome to Power Macintosh screen just like I saw in MAME. It's probably because I have no idea what I'm doing with the enablers. It seems like what we need is for someone...

The following Gestalt IDs are in that Spanish PowerPC Enabler 1.1's 'gbly' resource (identifiers thanks to http://www.rgaros.nl/gestalt/chapters/ch-06.html): 12 (unreleased 8100/120?) 40 (8100/110) 55 (8100/100) 47 (7100/80) 46 (prerelease 6100/66?) 31 (Paula's Desk Macintosh) The actual...

That’s a really cool find! Excellent sleuthing!

Gotcha. Sorry about that silly suggestion, I am quite unfamiliar with the SE/30 and accelerators so definitely ignore me on that. I just know that I've helped people with Turbo 040 issues with custom ROMs and would definitely recommend keeping the custom ROM out of the equation until you've...

Have you tried a stock SE/30 ROM just to rule that out? I guess alternatively, have you confirmed that the Turbo 040 by itself works with a IIsi ROM in the SE/30? Edit: The part I crossed out is a dumb idea that could fry your board, don't listen to me, see below. The reason I ask is the...

My IIci's socket with metal clips has gotten really loose because of all the testing I did of the SIMMs when I was selling them, so they too can go bad. In my case it's probably just from constantly inserting/removing. I believe the parts are rated for only so many insertions. Yep, and it was...

I hope I'm not necro-ing a thread that's too old, but I was wondering if anyone in here still has a working PowerExpress. I ask because of my and @atax1a ’s recent discovery of the beige G3's easter egg entry method (reformat the RAM Disk with the name "secret ROM image" on Mac OS versions less...

Really nice analysis as usual, David! I had no idea that the power off portion of the circuit had been tweaked in different revisions of the II. That's really good to know. I know that my post from 10 years ago about the power circuit is often referenced by people, so I added a note with a link...

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...