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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...

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.

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...

I recently picked up a Sonic MediaNet NuBus server board for a few dollars. Probably not very useful without a whole bundle of Sonic cards and clients, but I figured it'd be fun to play with for essentially free. From what I've found, MediaNet has an interesting history that's spottingly...

My SE/30 has developed a dim region on the screen which doesn't match any of the Dead Mac Scrolls diagnostics. I'm getting some occasional flickering, so I definitely think the analog board is due for a recap, but this behavior is curious. Essentially, about 25% of the left side of the screen...

A fair bit of information has been spilled about the Unitron 512, a Brazilian clone of the 512K (here's Low End Mac's take: https://lowendmac.com/2016/unitron-mac-512-a-contraband-mac-512k-from-brazil/). Less, however, has been mentioned about the Unitron 1024. Unlike the 512, which seems like...

I've been using my Greaseweazel to read 720k and 1.44mb IBM floppies and Amiga 880k floppies successfully, but 800k Mac floppies seem to be failing. Obviously they're GCR which normally causes problems, but if I understand the docs correctly, the flux image is read at sufficient rate you can...

I discovered something interesting while I was looking at the software for the Magellan 040 from this post: https://68kmla.org/bb/index.php?threads/na-2021-ebay-finds-thread.37524/page-179#post-556420 A fair amount of older software was incompatible with the 040's caches. Traditionally this was...

It seems my Quadra 700 is missing it's 4-pin cable for HD power. Does anyone know the pinout? From a picture online I think it's (numbered from bottom left viewed from the cable end): 1 - 12v 2 - Ground 3 - Ground 4 - 5v Which helpfully mirrors the pinout of the other end. Can anyone confirm...

I haven't seen a lot of Mac-on-Amiga topics on here, which is a shame. I've been restoring a 500 and had to give it the ShapeShifter treatment. If you're not familiar, ShapeShifter is the predecessor of both SheepShaver and Basilisk II. Unlike the latter, it's a hardware emulator but not a CPU...

I find I keep running into this problem...when installing network peripherals on 8.1 somehow OpenTransport gets damaged and stops working. Applications report various errors, like "cannot open resolver", claiming too many network connections are open, or just outright failing. AppleTalk works...

So, it's been benchmarked here before that the AsanteFAST 10/100 Ethernet card...just isn't too fast. Unsurprisingly older OT just can't push very quick anyway, and so the returns are really diminished...

I'm trying to understand some parts of the eMac hardware layout, but I don't have one on hand. Does anyone have dumps from any of TattleTech, the LSPCI application, or the Open Firmware device tree? Preferably from the OS 9-compatible eMacs.

No affiliation, just happened to notice this on Tindie today and haven't seen any discussion on here: https://www.tindie.com/products/ymkdevices/synchr030s/ Wild product. Seems like it has a PDS passthrough, so I'm not sure how they tested with accelerator cards. I kinda wonder if this works...

Various FAQs and READMEs from SuperMac indicate the 3.0 firmware for most of their cards (Thunders, many Spectrums) supports dynamic (rebootless) resolution switching. Which is really handy! But that's been curious to me, because it's never worked...Monitors always says a reboot is required, or...

As is inevitable, I have another failing Mac mini optical drive. In this case, a SuperDrive (Matshita UJ-845-C), so pour one out for one of the nicer ones. I'm looking for replacements, but before I'm lame and replace it with an identical drive, I was wondering what alternatives exist. Maybe...

Surprisingly, I didn't see this anywhere searching around the internet even though all the ingredients are there, but maybe I missed it. If you're dual-booting your New World Mac between OS 9 and OS X, you can easily set the machine to enter the boot picker on startup so you don't have to hold...

Looking at StdCLib, I have trouble making heads or tails of how things worked in practice, the list of caveats seems large. A few snippets: It gets weirder, prior to 7.6 it seems the system itself provided no StdCLib updates, meaning you always had what was in ROM which seems like it may vary...

I've been using the Sonnet 8.5 enabler to run 8.5 on my Power PC upgraded Quadra, and it seems to run well enough. So I figured I'd give 8.6 a try, but after running the upgrade installer and rebooting the machine just dies with an "illegal instruction" on boot. Quickly, and even with no...

The SuperMac cards (particularly I've looked at Thunders) appear they may support HDTV output from references in the ROMs and various documentation. Unfortunately, I haven't seen any manuals for the Thunder series. Does anyone know if it's possible to activate HDTV modes, and what triggers the...