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  1. Boctor

    Macintosh IIcx slow chimes of death; diagnostic return code 0000FFFF0001.

    Sorry for the double posts, I'm still trying to figure out why APD's Logic Board components test is failing. It's not my memory, extensions, or system software, all of which I've ruled out. I've also verified that the IIx family ROM always has the checksum $97221136 so it's not that either. I've...
  2. Boctor

    Macintosh IIcx slow chimes of death; diagnostic return code 0000FFFF0001.

    The video card is working great. Stereo sound and music work, as does networking. I haven't had it crash or behave strangely at all, except when I run Apple Personal Diagnostics. The "logic board components" test fails after a long time for no apparent reason, and gives me no useful details in...
  3. Boctor

    SDL2 for classic MacOS "rough draft"

    Most of what Godot uses SDL for is just an abstraction layer for input, so they don't need to have tons of platform-specific code for gamepads. Even if you could hypothetically target m68k with it, I wouldn't expect it to fit, because the GDScript interpreter and the matrix...
  4. Boctor

    Logic Board reworking: A Tale of Two IIcx

    Thanks, I may stick with using the ROM SIMM slot for the time being, knowing that. After my fight with the axials, I think further through-hole on the IIcx will require some more practice. Even with a desoldering gun, I was pretty much scorching the pads around those holes before their contents...
  5. Boctor

    Logic Board reworking: A Tale of Two IIcx

    That's an encouraging find with the ROM itself actually being dodgy, well done! Did you need any special tools such as a hot air preheater, to coax the DIP out of the board? I'm interested in getting the same socket and a ROM/programmer from a supplier in the future, for a IIcx whose onboard...
  6. Boctor

    MacWorld Macintosh

    Check out that ortholinear keyboard! The industrial design group were way ahead of the curve.
  7. Boctor

    Macintosh IIcx slow chimes of death; diagnostic return code 0000FFFF0001.

    You're right! I just plugged my NuBus Asante Ethernet card again, but this time I actually got the TX/RX LED and the auto-sense/media one that turns on when anything is connected. I must've been overthinking about accidentally breaking something last night, and not plugged the card or the RJ45...
  8. Boctor

    Macintosh IIcx slow chimes of death; diagnostic return code 0000FFFF0001.

    Great idea, I'd completely forgotten about that dialog! (I didn't even own a Mac with working soft power until a week ago.) The lock lights work as expected, the beeps and pressing return to use the default/selected dialog option work as expected. Both ADB ports, though the metal shields on them...
  9. Boctor

    Macintosh IIcx slow chimes of death; diagnostic return code 0000FFFF0001.

    I moved the RAM from bank B to A before getting it to work for the first time, so actually, you're probably right! I'd seen people seemingly boot IIci's with only B filled so I was confused. Furthermore, 24-bit ROMs do slow chimes for a RAM failure, where later 32-bit clean ROMs seem to play it...
  10. Boctor

    Macintosh IIcx slow chimes of death; diagnostic return code 0000FFFF0001.

    This is kind of an odd question, but is NuChip support dependent on special code that's absent from the stock SE/30 ROM? If so, then I imagine I'll need to order a ROMinator or similar, before trying any NuBus cards. For that matter, I wonder how much of the IIsi's NuBus awareness is in the ROM...
  11. Boctor

    Macintosh IIcx slow chimes of death; diagnostic return code 0000FFFF0001.

    I looked at the traces a bit more, comparing them to hi-res scans and the PCB layout for the reloaded PCB on github, and didn't see anything. I think regarding which ROM/address is bad, you're probably right, assuming the return value itself is correct. I put the SE/30 ROM in again, took off the...
  12. Boctor

    Macintosh IIcx slow chimes of death; diagnostic return code 0000FFFF0001.

    Thanks for the working example, it looks like it may have produced useful output. From picocom's output on my PC (top line's obviously from the terminal itself and not the IIcx): *** local echo: yes *** *A*A *4*4 *T000400010000*T *R000000020000*R I've never gone beyond checking for signs of...
  13. Boctor

    Macintosh IIcx slow chimes of death; diagnostic return code 0000FFFF0001.

    I recently got a scrap Mac IIcx, mostly to get its case for a different project, but still tried to clean and recap the board to see if it could boot. I did not attempt to power this logic board at all until the recap and washing/drying were all done, in case stray goo fried anything. The...
  14. Boctor

    IIsi Twinspark equivalent or DiiMO cache adapter clone: Does it exist?

    Hello. Are there any modern PDS 030->IIci Cache adapters out there for the Macintosh IIsi? Commercial or DIY, I'm not picky and only really care about availability, as I've been searching Ebay for quite a while with no luck yet. I'm aware the DiiMO 030 has been comprehensively...
  15. Boctor

    Part # for the Macintosh IIci motherboard screw

    A backup from the old Apple site seems to confirm. I'm likely getting a IIcx chassis for a project, soon, and can check if the screw is present in there.
  16. Boctor

    double the sensitivity of your sluggish Apple desktop mouse

    Really clever control panel, thanks for sharing this. Immediately added it to my default SCSI image for the battery-less SE/30. I notice there's also a "Mouse3" cdev mentioned on the page, and now I'm curious if this is an incremental update or functional improvement in any way.
  17. Boctor

    IIsi audio issues with MacSD

    I have this exact issue. I only notice it when listening to the 3.5mm speaker jack through studio monitor headphones. Unsure if the IIsi ever had "clean" sounding rear audio to begin with, as I postdate the computer, myself, and have never used one when they were new. Very clean PCB, no...
  18. Boctor

    SE/30 PDS Card stacks & CRT Anode EMI

    Yes, I have this issue with my SE/30. I inserted a TwinSpark with a Diimo 030 (IIci cache slot type), then an Asante MacCon on top. The Asante's passthrough connector is just a tad too close to the anode cap and emits quiet, continuous static noises, similar in intensity to running one's hand in...
  19. Boctor

    What's on that old hard drive?

    My IIsi's hard disk (Now in my Color Classic II) had some files from the mid 1990's, suggesting the computer was used at a medical school.
  20. Boctor

    Simasimac Not Going Away After ReCap on SE/30

    Those pads for C1 aren't looking so good. Reminds me of my first board, which had failed completely in the "death alley" with the four caps near the VRAM chips. If there are bad traces or lifted/destroyed pads anywhere, a jump wire may be an option, depending on what the schematics say the cap...
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