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Too up-to-date perhaps? I previously updated it to 3.2.3, and since read in the readme that 3.2.3 was specifically for compatibility with the Targa 2000. "This version is designed to fix compatibility issues between the Truevision TARGA 2000 (NuBus) card and the FWB SCSI JackHammer. If you are...

I thought I knew all the key combos, but this is a new one on me. Is it confirmed, and on which models?

...or restart. It locks up right at the point where it would normally power down and just sits there. If there are no drives connected to the Jackhammer it works normally. If I swap out the Jackhammer for a Silicon Express IV, it works normally. Apart from the shut down issue, everything...

Very likely, but the pinout matches the HA13421 so the schematic is probably useful to you even if not exactly right.

Looks like the CXA1035 is it - U3. IC's rebranded at some point during the production lifecycle?

Yes, it was fine. I've no horse in this race, but I would hate to see this thread locked because of one idiot who believes he is naturally entitled to the fruits of someone else's labours and a few bandwagoneers who appear to have a chip on their shoulder about the OP. Believe me, you are far...

I am a manufacturing engineer by day. Plastic FDM printing is pretty much the absolute lowest quality method to manufacture anything. It's appeal is that it is cheap and easy with a very low barrier to entry and enables just about anyone to make things that they couldn't otherwise. The amount...

This is interesting. I have one of these, but as discussed here, in a 800 the difference it makes is so marginal I wasn't even sure it was working. I don't remember if I ever tried it in my 700 as that has a PowerPC card in it, but looking at your results it seems that it would be far more...

That is awesome, thank you!

First, you have original schematics for wombat? How does one acquire those? On my actual Q800 board DS1 is not populated, but I have two Q650 boards with DS1 populated that report as Q800 if the jumpered led is installed. I'm not sure if I've ever tried the actual Q800 without the jumpered led...

I used to have one, it came with my SE that I bought second hand when I was around 11 or 12 years old. Although I recently recovered the SE from my mum's attic, I wasn't able to find the drive anywhere. Sadly, I think at some point in my foolish youth I must have decided it was old and uncool...

FWIW, I have five 800/8100 PSUs, and all of them are dead. Combination of Delta and Magnetek. I don't think any of them are Astec. They seem to be exceptionally/unusually fragile, but maybe it's just me. Four of them worked when I bought them and only one of them lasted for more than a few...

Lately I've been using hot tweezers (Hakko FX8804) to remove them. Not quite as easy as hot air, but no risk of heating something you didn't mean to.

I feel like I have seen an original drawing for this. The Quadra 650/800 developers note maybe? Edit: nvm it doesn't show the curvature. It would take me a couple of minutes to scan one on my cmm, but I still don't have it setup in the new workshop :(

The cdrom drive in my 800 needed recapped very badly. I didn't realise it at first because it worked fine with actual cd roms, it was only when I discovered terrible audio quality with audio cd's that it came to light. A good number of the pads under the caps were basically gone and required...

The 650/800 is noticeably quicker than the 700 in use. I cheated and put a spare 800 logic board in my 700 case.

I think I've tried that already, or I might have only downloaded MB when I started playing with the PPC card... When I get a chance I'll try again and actually document it!

I have one of those. I've never been able to prove that it's working properly. The difference in benchmark results are marginal to the point that they could be MOE, but I haven't been super methodical in my testing. Edit: it's also incompatible with my silicon express cards, which I value more...

I assume you don't have another PSU to test, or you'd have done that already... I'd do the PSU. Stable voltages when it's powered up doesn't guarantee that it's turning on cleanly. Most digital systems* are somewhat sensitive to their various voltage busses going high in a somewhat synchronised...

Yes, that's all ringing bells! Long time since I've thought about any of this :D