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Well my old Needham EMP-30 supports: Motorola MC68705R3 DIP 40 DIP48 317B Motorola MC68HC705C8 DIP 40 DIP48 306A Motorola MC68HC705C8 PLCC 44 PLCC44 305A Motorola MC68HC705C8A DIP 40 DIP48 306A Motorola MC68HC705C8A PLCC 44 PLCC44 305A Motorola MC68HC705C9A DIP 40 DIP48 306A Motorola...

I may have been mistaken in suggesting them. Memories are old and vague. There probably wasn't any reason for NewerTechnology's utilities to support anything before the PPC machines. Sorry.

I also looked at/purchased this one: http://www.xoxide.com/thermalright-xp-90c-cpu-cooler.html

Back in the Core2Duo days I explored heat sinks that had a wide enough base to cover both CPUs and were short enough to fit in the space. I don't have the resulting spreadsheet on this computer, otherwise I'd just post it. I bought several of them to test, but never did. I don't think the...

Cacheometer (cachometer?) from NewerTech will usually report accurately if a cache is present adn working. Sometimes easier to find in the "guages" collection.

Cost of 5V static RAM adds up to a bit, I think. But really, the most "expensive" part is the skull sweat to figure out how to build the cache supporting circuitry. Although I think Zane Kaminsky may have already done the basic analysis. I seem to remember him discussing potential...

Late reply, because I didn't remember this until now.... The S900 does some oddball stuff with the sound jacks. If you unplugged the front audio jack for some reason (amongst that mess of wires and jumpers at the front/bottom of the logic board) then the rear jack will not work properly...

For any still following this thread, work has been heated for the last several months. Plus knee surgery, most complicated taxes ever, et. al. I plan to get back to this, but there's no telling when. I did recently order a 7726. If it is actually delivered, I plan to test its behavior...

Hmmm. Where did the Wiki go? Doesn't seem to be a link to it at the Home 68kmla.org page. That's where the pinouts were listed. https://www.prismnet.com/~trag/Apple_pinouts/Firmware_Module_Pinout.txt And https://www.prismnet.com/~trag/Apple_pinouts/ For some other Apple pinouts I did...

Sorry for the late reply, I'm not visiting regularly these months. Yes, you must remove and reprogram the Flash chip. As far as I know all attempts to program the chip in-circuit have failed. Someone could probably hack the flasher to make it work, but that'll take a software wiz... My...

I have rethought my guess a bit, seasoned with an old memory and now I'm leaning towards hardware -- or firmware. I remembered an old (IIRC) Pinnacle Micro 5.25" drive which could operate on either type of media, but one had to change a jumper on the back, where one normally find the SCSI ID or...

I have no idea, but if I had to guess, I'd guess driver limitation. The hardware ought to be able to just sling the bits off the disk, I would think. Of course, there might be low level hardware functionality in how the sectors are read, but that just doesn't seem consistent with how most...

Thank you. I'm feeling very sleepy today -- probably oak pollen -- and that was a nice pick-me-up. It's always nice to have been right about something. :)

Hopefully you're getting help from @360alaska but in any case you might throw a scan of both sides of the ROM up here. That way we can see if it looks like any of the ROM modules that are already designed.

Heh, just quoted you on that. But only to mention that that is also my recollection from the explanation in the original thread when the software was originally developed.

Third party ATA cards used SCSI hooks for their drivers. Hence IDE/ATA busses show up as SCSI busses when one uses SCSI utilities on the Mac. I don't know how Apple handled support for built-in IDE/ATA busses.

Yes, at less than $1 per chip, one must ask whether it's worth the time to test, vs. just replace the lot. Excellent point, techknight.

Those do look iffy. Also, check those vias through the board to confirm they actually conduct from one side of the board to the other. My IIci had some vias chewed by capacitor goo that looked okay, but were actually corroded through. Also, don't ignore Techkight's advice. He has far more...

There's a request on LEMSwapList for AIX 4.14 or 4.15 for the ANS. I don't know if that's related to anyone on this thread, so thought I'd mention it. You might want to join forces with that poster.

Keep in mind it may be labeled A11 or A12, depending on whether the DRAM address bus starts numbers with A0 or A1. And this is the address line(s) between the memory controller and the DRAM SIMMs. Not the main CPU address bus. The easiest way to find it is probably to get a pinout of the...