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  1. rplacd

    Reverse Engineering the Macintosh SE PCB & Custom Chips for 1:1 reproduction

    Hot damn, times like this I wish 68kmla had its own little Kickstarter clone... it'd allow us folk without the technical chops to somehow chip in.
  2. rplacd

    Question mark over checkerboard pattern on SE

    Others know the SE better than I do, but do you need to have a shunt installed on the 2/4M pins?
  3. rplacd

    mac iici unfixable?

    Ooh, yeah, +1 for soaking the boards in vinegar to neutralize the battery gunk, and cleaning the boards with water/IPA to see what damage the corrosion's done...
  4. rplacd

    Reverse Engineering the Macintosh SE PCB & Custom Chips for 1:1 reproduction

    Ha! The idea of a completely non-Apple SE/30 is great. Let's keep our SE/30s running indefinitely... As part of the Classic II gang gang, though, I'm obliged to cast my vote for the Classic II... although it's got custom ASICs out the wazoo, so it'll be harder to do. Oh well, SE/30 it is.
  5. rplacd

    An SE/30 Thought Experiment

    Hot damn, talking about pushing compact Macs to the limit... I imagine you'd need the upgraded ROM to max out the RAM...
  6. rplacd

    An SE/30 Thought Experiment

    ! is that running Mac OS 8? How'd you get that working? (A ROM swap maybe?)
  7. rplacd

    3D Printed SE/30 ROM Clips

    Ooh, yes! DM'd – I have broken clips, and I'm not hopeful that using rubber bands are going to work in the long run.
  8. rplacd

    Dumb*]#* eBay sellers

    God, yes... the entire Macintosh Classic/LC/IIsi wave of computers were built like tanks. I'm sure that the effort that Apple spent on getting the LC logic board as compact as possible went into the Classic and IIsi as well, which is what makes them so resilient.
  9. rplacd

    Transplanting 9-inch CRTs - A Journey

    Hot damn, those shadows really give off 80s vibes. 
  10. rplacd

    Mac Classic II RAM issues

    Surely that would be to configure the ROM/FPU expansion card, no?
  11. rplacd

    [A/UX] Drop-in clean A/UX install image for SCSI2SD

    This worked! Extracting a new copy of A/UX Startup from the image on MG worked. Thanks for the pointer.
  12. rplacd

    [A/UX] Drop-in clean A/UX install image for SCSI2SD

    Here's a strange glitch I'm observing on my SE/30 – if you remove A/UX Startup from Startup Items, I can't run A/UX Startup manually – I get the following error: (It used to be 512k.) No editing of the minimum + preferred memory sizes fixes the problem. Has anyone seen this before?
  13. rplacd

    What's wrong with my SE/30?

    I'm thinking that maybe installing the ROMinator II might have pushed some gunk into the slot? It can't hurt to use contact cleaner or something to clean out the slot and check.
  14. rplacd

    A/UX -- how to fsck a large disk?

    In general, fscking large disks in older Unices with non-journaled filesystems is a PITA – every time you don't do a clean shutdown, lots of inodes get screwed up. I've ruined so many installations of OPENSTEP as well like that.
  15. rplacd

    Mysterious simasimac after replacing SE/30 PRAM battery

    It looked like that was it – thanks so much for catching what I missed! I used a few rubber bands to apply pressure to the ROM SIMM like so for a quick fix:   Thanks @dochilli, @Daniël Oosterhuis as well for the leads – there actually did turn out to be a little gunk in the socket as well.
  16. rplacd

    Mysterious simasimac after replacing SE/30 PRAM battery

    All – I'm genuinely flummoxed by this. Have any of y'all seen this happen before? I took a working, recapped SE/30 without a PRAM battery, installed a new PRAM battery off Amazon, and boom – simasimac on boot, no chime, even after waiting for RAM check to complete. Removed the PRAM battery, and...
  17. rplacd

    Classic Analog Board Voltage Testing

    Yes! A pinout for the hard drive port is available on pages 162-163 of http://www.maccaps.com/MacCaps/Repair_books_files/Mac Classic %26 SE Repair and Upgrade Secrets.pdf, and for the internal logic board connector at https://old.pinouts.ru/Power/macclassicpower_pinout.shtml (although I'm not...
  18. rplacd

    Mac SE/30 PDS & Power Questions

    Sign me up for a Linux version!
  19. rplacd

    Mac SE/30 PDS & Power Questions

    Ha! If this ever happens, I look forward to one-upping all of my friends with Amiga PPC accelerators with some casual web browsing  ;)
  20. rplacd

    Macintosh Classic II Restoration

    Wow, this is a beautiful log! I'm waiting to do a Classic -> Classic II board upgrade, so the recap guide is really gonna help. Did you ever figure out what the jumper wires were for – maybe broken traces?
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