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Blake PattersonThinking Different, Thinking Slowly: LLMs on a PowerPC Mac [The Resistor Network]<a href="http://www.theresistornetwork.com/2025/03/thinking-different-thinking-slowly-llms.html" rel="nofollow noopener noreferrer" translate="no" target="_blank">http://www.theresistornetwork.com/2025/03/thinking-different-thinking-slowly-llms.html</a><a href="https://oldbytes.space/tags/Mac" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Mac</a> <a href="https://oldbytes.space/tags/vintageMac" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#vintageMac</a> <a href="https://oldbytes.space/tags/PowerBook" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PowerBook</a> <a href="https://oldbytes.space/tags/PowerPC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PowerPC</a> <a href="https://oldbytes.space/tags/PPC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PPC</a> <a href="https://oldbytes.space/tags/AltiVec" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AltiVec</a> <a href="https://oldbytes.space/tags/G4" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#G4</a> <a href="https://oldbytes.space/tags/G5" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#G5</a> <a href="https://oldbytes.space/tags/vintagecomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#vintagecomputing</a> <a href="https://oldbytes.space/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#retrocomputing</a> <a href="https://oldbytes.space/tags/AI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AI</a> <a href="https://oldbytes.space/tags/LLM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#LLM</a> <a href="https://oldbytes.space/tags/machinelearning" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#machinelearning</a> <a href="https://oldbytes.space/tags/coding" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#coding</a> <a href="https://oldbytes.space/tags/Apple" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Apple</a> <a href="https://oldbytes.space/tags/tech" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#tech</a> <a href="https://oldbytes.space/tags/blog" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#blog</a> <a href="https://oldbytes.space/tags/programming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#programming</a>

mmu_manSo, the only thing I hate more than people forcing me to published unfinished work because they are redoing what I spend nights already doing, is people wasting time doing what I already did…<a href="https://github.com/mmuman/cad-mac-pb500-pwrconn" rel="nofollow noopener noreferrer" target="_blank">https://github.com/mmuman/cad-mac-pb500-pwrconn</a><a href="https://m.g3l.org/tags/Mac68k" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Mac68k</a> <a href="https://m.g3l.org/tags/PowerBook" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PowerBook</a> <a href="https://m.g3l.org/tags/PowerBook5xx" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PowerBook5xx</a> <a href="https://m.g3l.org/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RetroComputing</a> <a href="https://m.g3l.org/tags/3DPrinting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#3DPrinting</a>

Dave🌱I'm very happy with the results. I went in not knowing if I was going to be able to succeed at all. This thing is just so brittle, and I had never attempted to replace a polarizing filter before. Given that I now have an almost fully working <a href="https://bitbang.social/tags/PowerBook" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PowerBook</a> <a href="https://bitbang.social/tags/5300C" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#5300C</a> (sans working speaker, future project!) is so cool.Move over, Jeff Goldblum. I now I have the power to save the world 🤓Alright, that's the end of my nerd-spam. Hope you enjoyed it! 👋<a href="https://bitbang.social/tags/MARCHintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MARCHintosh</a> <a href="https://bitbang.social/tags/Apple" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Apple</a> <a href="https://bitbang.social/tags/Macintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Macintosh</a> <a href="https://bitbang.social/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RetroComputing</a>

Dave🌱For example, I left the filter larger than the display as I wanted to make sure it would cover everything fully and no dust could get in. I went a bit too far and this caused some parts of the filter to bend ever so slightly by the plastic frame of the display. This doesn't cause stress on any of the parts, it just means the light reflects a bit differently in some places, which if you know what you're looking for can be obvious. <a href="https://bitbang.social/tags/MARCHintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MARCHintosh</a> <a href="https://bitbang.social/tags/Apple" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Apple</a> <a href="https://bitbang.social/tags/Macintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Macintosh</a> <a href="https://bitbang.social/tags/PowerBook" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PowerBook</a> <a href="https://bitbang.social/tags/5300C" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#5300C</a> <a href="https://bitbang.social/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RetroComputing</a>

Dave🌱So, what does the result look like? Pretty good, I think! Even with the filter not directly applied, the result is quite clean and clear looking — especially keeping in mind we're dealing with a 30 year old active matrix LCD display with aging backlight. It's definitely not perfect, though, and I have some ideas that I'd like to do next time I open this laptop up — as its speaker isn't currently working, which I have to fix too. <a href="https://bitbang.social/tags/MARCHintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MARCHintosh</a> <a href="https://bitbang.social/tags/Apple" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Apple</a> <a href="https://bitbang.social/tags/Macintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Macintosh</a> <a href="https://bitbang.social/tags/PowerBook" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PowerBook</a> <a href="https://bitbang.social/tags/5300C" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#5300C</a> <a href="https://bitbang.social/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RetroComputing</a>

Dave🌱While I was here I used a bit of epoxy to sort of glue up a small broken part as best I could. It came to me in this incomplete and broken state so there's only so much I can do. It's something, at least. The combination of now brittle plastics and very poor design decisions really do have this thing exploding parts left and right. If you want to work on these, a 3D printer is probably essential. Which, sadly, I don't have. <a href="https://bitbang.social/tags/MARCHintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MARCHintosh</a> <a href="https://bitbang.social/tags/Apple" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Apple</a> <a href="https://bitbang.social/tags/Macintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Macintosh</a> <a href="https://bitbang.social/tags/PowerBook" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PowerBook</a> <a href="https://bitbang.social/tags/5300C" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#5300C</a> <a href="https://bitbang.social/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RetroComputing</a>

Dave🌱Fortunately it was easy to remove this, err, mistake in confidence. You saw nothing! For my second attempt I chose an easier route; Leave the protective film covering the film's adhesive on and simply attach the film to the sides of the display, and have it sort of hang in front of the screen. I'd be sacrificing a bit of display quality, but I can revisit attempting to do it right again once I obtain the tools and/or skills. <a href="https://bitbang.social/tags/MARCHintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MARCHintosh</a> <a href="https://bitbang.social/tags/Apple" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Apple</a> <a href="https://bitbang.social/tags/Macintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Macintosh</a> <a href="https://bitbang.social/tags/PowerBook" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PowerBook</a> <a href="https://bitbang.social/tags/5300C" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#5300C</a> <a href="https://bitbang.social/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RetroComputing</a>

Dave🌱Another week later to get the 45° filter variant. Since I could only find (reasonably priced) adhesive variants shipped to where I live, I thought I'd try to see if I could actually get it to stick reasonably well. However, as mentioned before, I totally lack the skills (and tools!) to do this reasonably well, so the result was.. abysmal. So many bubbles! Who needs Marine Aquarium when you've got me slapping on this bad boy. Yikes. <a href="https://bitbang.social/tags/MARCHintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MARCHintosh</a> <a href="https://bitbang.social/tags/Apple" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Apple</a> <a href="https://bitbang.social/tags/Macintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Macintosh</a> <a href="https://bitbang.social/tags/PowerBook" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PowerBook</a> <a href="https://bitbang.social/tags/5300C" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#5300C</a> <a href="https://bitbang.social/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RetroComputing</a>

Dave🌱With that success under my belt, I felt hopeful. The next step was to find out the polarizing filter's orientation, as that varies by display. I wasn't able to find this online for this specific model, so I thought I'll just order a few in the obvious orientation choices. Easy. I initially didn't order the 45 degrees variant, because I thought; surely it's not 45 degrees, right? That'd be a silly number. Right? It was 45 degrees. 🤦 <a href="https://bitbang.social/tags/MARCHintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MARCHintosh</a> <a href="https://bitbang.social/tags/Apple" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Apple</a> <a href="https://bitbang.social/tags/Macintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Macintosh</a> <a href="https://bitbang.social/tags/PowerBook" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PowerBook</a> <a href="https://bitbang.social/tags/5300C" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#5300C</a> <a href="https://bitbang.social/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RetroComputing</a>

Dave🌱But I digress.. the residue has to go, and no amount of alcohol was doing anything to it. I found this recommendation for a certain cleaning liquid designed for this very purpose, so I ordered that and gave it a try. To my surprise, it worked amazingly well. I put two paper towels on the display, drenched these in the liquid, let it sit for a bit, and then wiped everything off. That's it, super simple. The screen looks gorgeous! <a href="https://bitbang.social/tags/MARCHintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MARCHintosh</a> <a href="https://bitbang.social/tags/Apple" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Apple</a> <a href="https://bitbang.social/tags/Macintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Macintosh</a> <a href="https://bitbang.social/tags/PowerBook" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PowerBook</a> <a href="https://bitbang.social/tags/5300C" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#5300C</a> <a href="https://bitbang.social/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RetroComputing</a>

Dave🌱And the smell! Don't get me started on the smell. I did this in front of an open window wearing a mask, but still had to walk away. Just the act of removing the film awakened this positively vile chemical stench that just can't be right. Kind of terrifying we're normally sitting in front of this (while warm from being powered on!). I wonder if this stuff slowly seeps out too over the years? Yikes. <a href="https://bitbang.social/tags/MARCHintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MARCHintosh</a> <a href="https://bitbang.social/tags/Apple" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Apple</a> <a href="https://bitbang.social/tags/Macintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Macintosh</a> <a href="https://bitbang.social/tags/PowerBook" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PowerBook</a> <a href="https://bitbang.social/tags/5300C" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#5300C</a> <a href="https://bitbang.social/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RetroComputing</a>

Dave🌱I mention scary because have you ever tried to apply a screen protector to a phone display? Yeah, well, I suck at that. This would be that, but bigger *and* required removing the old polarizing filter without, you know, destroying the display in the process. I know what I'm doing, I lie to myself. Anywho, in for a penny.. Fortunately the filter came off fairly easily. But by golly did it leave a *ton* of glue residue behind. Hoboy. <a href="https://bitbang.social/tags/MARCHintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MARCHintosh</a> <a href="https://bitbang.social/tags/Apple" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Apple</a> <a href="https://bitbang.social/tags/Macintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Macintosh</a> <a href="https://bitbang.social/tags/PowerBook" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PowerBook</a> <a href="https://bitbang.social/tags/5300C" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#5300C</a> <a href="https://bitbang.social/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RetroComputing</a>

Dave🌱Even though I completed this particular challenge a few months ago, I hadn't shared it yet; Restoring the display of my <a href="https://bitbang.social/tags/Apple" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Apple</a> <a href="https://bitbang.social/tags/Macintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Macintosh</a> <a href="https://bitbang.social/tags/PowerBook" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PowerBook</a> <a href="https://bitbang.social/tags/5300C" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#5300C</a> suffering from vinegar syndrome. This was the "scariest" <a href="https://bitbang.social/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RetroComputing</a> project I have tackled yet, especially as the 5300C is one big brittle plastic design disaster. Even just *glancing* at it has parts snap off and explode left and right 😅But, I digress. Here's what we were dealing with. <a href="https://bitbang.social/tags/MARCHintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MARCHintosh</a>

mmu_manStill needs a few tweaks but…USB-C power adapter for the <a href="https://m.g3l.org/tags/PowerBook" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PowerBook</a> 5xx…(note it doesn't provide charge)<a href="https://m.g3l.org/tags/Mac68k" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Mac68k</a> <a href="https://m.g3l.org/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RetroComputing</a>

PierreNick :apple_old_logo: 💾PowerBook 145B! Station Villa-Maria, Métro de Montréal ❤️🧡💛<a href="https://hachyderm.io/tags/MontrealMetro" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MontrealMetro</a> <a href="https://hachyderm.io/tags/PowerBook" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PowerBook</a> <a href="https://hachyderm.io/tags/VintageApple" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#VintageApple</a> <a href="https://hachyderm.io/tags/VintageMac" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#VintageMac</a>

PierreNick :apple_old_logo: 💾The year is 1991, it was either a car or Macintosh PowerBook, so here’s me taking the metro with the latter.(Haha, new <a href="https://hachyderm.io/tags/MARCHintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MARCHintosh</a> acquisition! PowerBook 145B, with an internement display, TBD, but it was $50, very pristine and en canadien français).My first 68k PowerBook!<a href="https://hachyderm.io/tags/VintageApple" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#VintageApple</a> <a href="https://hachyderm.io/tags/VintageMac" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#VintageMac</a> <a href="https://hachyderm.io/tags/PowerBook" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PowerBook</a> <a href="https://hachyderm.io/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RetroComputing</a>

N95 subnet mask 😷<a href="https://bitbang.social/tags/Free" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Free</a> to a good home: A PowerBook Duo 2300. There's an issue with a strip of the screen, which went away a few minutes after booting. I don't remember it having that issue back when I stopped using it. 🤔 Includes an AC adaptor and PowerBook grey grounded power cable. The modem cover has snapped off and a piece of duct tape has been applied to keep the dust out. :apple_inc: 1 of 2. <a href="https://bitbang.social/tags/Macintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Macintosh</a> <a href="https://bitbang.social/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RetroComputing</a> <a href="https://bitbang.social/tags/VintageComputers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#VintageComputers</a> <a href="https://bitbang.social/tags/PowerBook" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PowerBook</a>

Michael EngelI found quite an uncommon hardware extension in this PowerBook 170 – an external video output. Perhaps I can use this to teach my courses next summer – maybe with slides in Hypercard? 😀<a href="https://sueden.social/tags/Mac" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Mac</a> <a href="https://sueden.social/tags/Powerbook" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Powerbook</a> <a href="https://sueden.social/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#retrocomputing</a>

Daniele Verducci 🧉<a class="hashtag" href="https://social.ichibi.eu/tag/retrocomputing" rel="nofollow noopener noreferrer" target="_blank">#retrocomputing</a> question: I'm trying to boot my <a class="hashtag" href="https://social.ichibi.eu/tag/macintosh" rel="nofollow noopener noreferrer" target="_blank">#macintosh</a> <a class="hashtag" href="https://social.ichibi.eu/tag/powerbook" rel="nofollow noopener noreferrer" target="_blank">#powerbook</a> 170 from <a class="hashtag" href="https://social.ichibi.eu/tag/floppy" rel="nofollow noopener noreferrer" target="_blank">#floppy</a> . So i used a <a class="hashtag" href="https://social.ichibi.eu/tag/linux" rel="nofollow noopener noreferrer" target="_blank">#linux</a> machine with <a class="hashtag" href="https://social.ichibi.eu/tag/dd" rel="nofollow noopener noreferrer" target="_blank">#dd</a> to write a known good <a class="hashtag" href="https://social.ichibi.eu/tag/system7" rel="nofollow noopener noreferrer" target="_blank">#system7</a> disk image onto a known good <a class="hashtag" href="https://social.ichibi.eu/tag/floppydisk" rel="nofollow noopener noreferrer" target="_blank">#floppydisk</a> . But dd exits reporting an i/o error while writing. Note that I can create working <a class="hashtag" href="https://social.ichibi.eu/tag/msdos" rel="nofollow noopener noreferrer" target="_blank">#msdos</a> floppy with the same drive and same floppy. Also tried other floppies, same error and every time at the same place (44kb from the start). As expected, the mac won't boot, but for a little while I see the happy mac icon, so it seems the first part of the disk is correct. Is there any mac-specific parameter to pass to dd? Any other hints?

Random_Seed :apple_inc: 💾 🇿🇦So, a PowerBook 190cs fell into my lap today (no, that wasn’t the cause of the damage) and needless to say, I couldn’t say no. I mean, what if it had already been upgraded to a 5300cs, or its hard drive contained rare unarchived software on it? Perhaps its destiny is to become an awe inspiring frankenMac. Thankfully, at the very least, parts. <a href="https://bitbang.social/tags/vintageapple" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#vintageapple</a> <a href="https://bitbang.social/tags/macintosh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#macintosh</a> <a href="https://bitbang.social/tags/powerbook" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#powerbook</a> <a href="https://bitbang.social/tags/batteryleakage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#batteryleakage</a> <a href="https://bitbang.social/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#retrocomputing</a>

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