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Hmmm, it turns out the 'fix' I mentioned was just a coincidence, it had been working happily for days, and then yesterday after a reboot, it went back to its old tricks. Curious. The hang occurs extremely early in the boot process - right at the first screen 'flicker' that you get after A/UX...

I had a similar problem with an SE/30 that I recapped recently - mine would sometimes boot fine, but other times get stuck in a similar-sounding loop, and when it would running, it would crash in that way if any sound was played. The problem ended up being a shorted trace hidden under one of the...

Huh... the trick (at least for the ethernet card) seemed to be that I had to install Ethertalk drivers in the startup partition's System Folder, once I did that, A/UX booted fine and recognised the card. Maybe it didn't like seeing the card in an uninitialised state?

I'm trying to get A/UX 3 stood up on my IIfx, and I'm running into a really strange problem - if the only Nubus card in the machine is my graphics card, it'll boot fine and run happily. If I add any more cards, it hangs at a grey screen with square corners, immediately after loading the kernel...

Ha, the extra-infuriating thing is that the Colorboard shows up as Display 1, and the internal video as Display 2, if I do a PRAM reset, video ends up on the external display 🙃. Had me worried for a bit when I first booted it up after recapping, and only got a grey raster on the inbuilt display...

My SE/30 has a RasterOps Colorboard 264 in it, which is lovely, but it's not without its caveats - it does not seem to have any monitor-presence detection, and just presents a 640x480 screen whether there is a monitor connected to it or not. This is a bit annoying, since I don't always want to...

I'm playing around with A/UX 3.0.1 on my SE/30, and I'm running into a strange problem where the kernel panics with "!Double Panic: unexpected kernel trap" when there is heavy incoming serial traffic. I've seen this happen both in terminal sessions using cu and when receiving network traffic...

Not directly related to this thread, but since I came across this post while trying to fix a sound-related crash on my SE/30, and found a solution: check the traces around C3 and C4, there are a couple that run really close to the pads, and in my case I had shorted one of them in such a way that...

Found the problem - while replacing the audio filter capacitors C3 and C4, I had shorted a pad to an adjacent trace. I can't recall which pin on UB11 that trace went to, but the net result was that any audio signal on the left channel would upset UB11 enough to trigger a reset. I insulated the...

Some more findings: It will sometimes play sounds successfully, other times it hits the reset loop. The reset button does not function properly - the screen blanks while the button is held down, but when the button is released, the system freezes, with the screen showing what it was when the...

Hi! I know I'm a newcomer, but this coincides very well with me getting back into the vintage-mac hobby after many years out of the game. I'd love to buy a pair of them, with shipping to the USA. As far as testing ability goes, I can test against a PowerBook 180c, an SE, an SE/30, and once I...

I've just finished recapping an SE/30, and have a puzzling problem: while the boot chime is loud and clear and sounds normal, playing any sound while the system is running causes it to lock up and play a 'stuttering' boot chime for a second or two, and then restart - as if somebody pushed the...

Oh yes, it was quite spectacular. Flames and everything. Thankfully, C1 is fairly well away from everything else, so there doesn't seem to be any other collateral damage, at least from a visual inspection. On closer inspection (wearing the right glasses helps!), there are a couple of aluminium...

First, a little background. While I'm new to 68kMLA, I'm a long-time collector and enthusiast of old hardware of all kinds, Apple gear especially. At my peak, I had a IIfx, a IIci, about ten assorted compact Macs, and all manner of goodies and peripherals (at one point, the IIfx was driving a...