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Thanks folks, I went ahead and built my own. This cable has all the wires and a bare end which is pretty handy! The colors are also correct to spec, at least mine was. https://www.amazon.com/dp/B0D415MLGV

I'm trying to see if I can get my Wombat Quadra board to enter diagnostic mode, as seen here: https://web.archive.org/web/20140921020853/https://mac68k.info/wiki/display/mac68k/Diagnostic+Mode I suspect Pin 156 on U16 (the IOSB) is PA0 for VIA1, which I would think should bring the system into...

I'm no expert at words n stuff, but this seems like 3 matching disks with A-F, G-R, and S-Z, and they can spell about as well as me so a few ones that are on the wrong disk. To list disks without FUSE you can install hfsutils from homebrew, run hmount <img file> from the terminal, then hls.

Before I go buy the parts and make one, has anyone bought a working Mini-DIN to standard serial cable (preferably DB9) recently? You can, surprisingly, still buy cables, but the reviews online warn about missing wires so I am dubious.

It definitely has to be formatted with OS 9 drivers, at least.You'll see 10 or so partitions on the disk if so. That said, it's possible the later mini needs a different patch. But I doubt it, since the G5s are the same.

Three additional interesting things of note: I suspect the miroPRISMA 1152GX is also the same card. I've never seen one, but it runs basically the same ROM @ version 2.01. It follows the larger list of resolutions in the Radius card. The last miro software, last QuickColor, and the last 24AC...

I think it's hard to do much better, yeah. It's already interleaving and I don't think memory of the era ever really went below 50ns? I'm out of my depth, but maybe with a custom quad-interleave memory controller it could keep up? Multi-channel wouldn't be period, that's too late. I don't know...

Yeah, it makes everything surprisingly clean and tidy. Repeating from above since it was sandwiched in the middle of a long block; with these nvram changes: - OS 9 drive firmware should be installable from Disk Utility - OS 9 should be pickable in the OS X Startup Disk configuration - USB...

After fighting with my mini this week I realized I introduced a bug into my script above. A corrected version: #!/bin/bash echo "Setting nvramrc to allow OS 9 boot picker and USB boot..." sudo nvram nvramrc="\" /\" select-dev \" PowerMac10,1\" encode-string \" model\" property \" PowerMac10,1\"...

Just dumped 128k and it's just a mirror image. Nice!

With a quick fix to SlotsGrab by @joevt, I've completely dumped the 1.6.1 ROM. So, updating this Qlogic firmware breakdown: 2.1.rc2 is 1.18 1.6.5 is 1.27 1.6.1 is 1.16 Nothing too exciting but it's good to get full dumps!

I did this on my mini a couple days ago, some notes for 7.6.1: - Sytem Profiler was hanging for me. Doing the update to 2.1.2 fixed it. - I tried a few different things but could not get networking to work. Even with Open Transport 1.3, 7.6.1 doesn't seem to want to speak with the ethernet...

I suppose I will add, from personal commentary: because the firmware and bitstreams seem likely to be extractable, and some ISP1000 are currently on eBay, this does seem possible to clone. The rest of the chips seem off-the-shelf. I have no plans to clone it, however. That is not my wheelhouse :).

I finally got one of these cards for a reasonable price (at least, not the $400 they kept going for during the pandemic). I figured I'd document some notes I didn't see anywhere else, or consolidate some bits with scattered misinformation: Yes, you can use it as a boot drive. Yes, on a Quadra...

That depends on the machine ID as well. Q800 memory timings are even tighter than Q650 as it's tuned for 70ns memory, using the same ROM. (IIRC, if you load an LC475 ROM you get the Q800 timings for both, oddly enough).

Hmmm, good point about later ROMs. Besides the novelty of PiStorm from an engineering perspective, it's not been interesting enough for me to tinker with one in an 030+ so I've never tried to fit one. Given it doesn't drop-into the socket, I bet no one else has either. The Mac being a real...

Even on Amiga I believe PiStorm tracks the program counter to see when the system is running ROM regions that are timing sensitive and slows operation. To my knowledge that's never really been fully worked out on Macs, and unlike Amiga which only has a handful (relatively) of active ROMs due to...

From GitHub:

Theoretically the resources can be re-ordered without too much difficulty if someone puts in the effort to write a tool to adjust the various list pointers. It’s certainly doable without too much pain. If so I suspect enough resources could be dropped by sacrificing II-series support. There’s...

Double socket stack making me laugh. The bottom is just a riser?