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There is a kit for a 950 that allows you to use ATX psu's, or was, a few years ago. Not sure if it ever got posted on github though.

I remember i sent a Harris branded SWIM over, now...although i've never seen Harris branded parts in Apple machines, i do wonder if it was a remarked part...

The 1.6 revision fixes a few things, silkscreen errors and provides additional address lines for a potential macintosh classic ROM swap.

Had me worried that it was a bad batch of PCB's there!!

I can categorically deny any tampering! :D Honestly, the board had maybe 30 mins of attention paid to it, before it was put back in the case and shipped off.

This might be the video for you then, specifically around 8m15s

IIRC there are 68000SEC parts rated for 50MHz, as well, they just eliminate the E clock.

Try an SE - the parts are easier to find - the GLU chip and ADB chip have been reverse engineered, the SND has been done by DosFox, the only chips that are needed are the BBU, SWIM and ROM's. The ROM's are easy to make, the SCC and VIA chips are off the shelf parts, the BBu is shared with the...

Damn, that FWB driver doing some heavy lifting there!

@Zane Kaminski just an FYI the SCC requires a 4.25x divider from the master 15.6672MHz clock in order to run the serial ports properly. Although this quote references the TSG or Timing State Generator from the original Macintosh & Plus, the SE is just integrating all this identical logic into an...

@JDW Mostly they just end up in e-waste, crushed. I try and re-home them when i can but honestly people are getting so careless with their stuff now they resemble skateboards mostly by the time i get them.

James - would you like me to send you a Windows 10 capable laptop for this sort of thing? We have plenty of basic 6/7/8/9/10th gen Intel stuff that gets chucked out for 'being old' at work.

I did think that might be an issue, although I didn't have accelerators in mind. Luckily most things like that are socketed or easy to swap out, it was the lack of some AHCT parts during the pandemic that was the driving factor behind their choice.

Just macEffects, off the shelf.

The only thing ona a Reloaded board that I think could be a problem is a trace being bridged somewhere on the PDS connector - it's insanely tight there, and may be causing the problem?

Ohhh hang on... @JDW did you bodge the power pins for the SCC as that board revision had an error there that stops things like System 7 working properly/at all.

@JDW are you using the original ADB chip or the new PIC16F84 one? @JDW are you using the original ADB chip or the PIC16F84 remake? It might be worth swapping it out for one if using the original as i've seen plenty of marginal OG ADB controllers fail in this way.

It's a straight up parallel interface, either 6 or 8 bit depending on the colour depth and if it's active or passive matrix. @3lectr1c may be the person for this though.

Pretty sure I sent a brand new 15.6672MHz one to @JDW

I have around 100 x 15.6672 MHz crystal oscillators if anyone needs one...?