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Mac IIci & APS-branded HD - Finder Bombs "Unimplemented Trap"

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Losing my mind, y'all...


Got a Iici last week in great shape (though I really wish it had the programmer/reset switches for aesthetics).


Included was 20 MB RAM, a Radius PrecisionColor 8xj, and a Quantum Trailblazer ~850 MB SCSI HD.

What was interesting about this (in that I'd never seen this before) is that it had a "Quality Tested & Certified" sticker from APS Technologies with a barcoded serial number.


I was able to temporarily install my Turbo040 card and Apple NuBus NIC before happily installing 7.5.5. I installed the Radiusware stuff but was stuck at 640x480. But that's a minor inconvenience for now...


I wasn't quite sure was APS was or why FWB, Lido, or HD SC Setup wouldn't detect the drive (but clearly it's bootable).

MacEnvy, TattleTech, etc all identified the CharisMac (Anubis?) driver so I downloaded the Anubis tools, which detected the drive and I attempted to change the drive icon, of all things...


Whether that upset the SCSI gods, I don't know, but here's the deal: I can't boot (normal, Extensions Mgr or Extensions Off) from this drive or a floppy with the HD connected.


PRAM Reset: no change

Normal Boot: Extensions load without an issue, cut to blank desktop with MultiFinder and 040 menubar icon, then menubar, then bomb - "Finder - Unimplemented Trap" error and Restart

Cmd-Shift Boot: Bombs on "EM Manager" as soon as the Extensions Manager loads, same error + Restart

Shift Boot: same bomb/error

Boot from Floppy (7.5.5 Disk Tools): same bomb/error, unless hard drive is disconnected, then it boots! So it's got to be the drive, but this isn't useful since I can't mount the drive after the system's booted.

24/32-bit Mode: no effect, same results

Turbo040 vs. Cache Card vs. No Card: same results


So it's either the driver on the drive or something like a corrupt Desktop DB file that is crashing Finder - that's my theory at this moment.


But I can't mount the drive so I can't even format the damn thing - not that I want to... but if I have to, I'm dual-booting with A/UX like my other capable machines.


The only things I've yet to try are to #1 mount the hard drive from the external SCSI port (perhaps it's a bus issue but unlikely), or #2 change the ID and mount in another machine.


Can I get out of this unscathed? I don't know, but I'm confident Ye Old 68k Gurus can answer the call to action!



Edited by pb3623

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Because I can't get to the Finder to launch and I can't even boot from floppy as long as that drive is connected... I assume if it actually crashed or something like that that it wouldn't even get that far, extensions, inits, etc. I can try booting from my FWB recovery CD tonight (but I don't think the II series can boot from CD).


Any way to hot plug the drive after it's already been booted to Finder with it unplugged/unmounted? Because that appears to be the tipping point.

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Corrupt desktop database will cause older Finder versions to crash, but I don't know if Finders 7.x and later still crash like that. They changed the format of the Desktop file in 7.0. I would try booting with Command-Option held down and see if you get a rebuild Desktop dialog.

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Ack, I have a feeling it's capacitors... it's gotten progressively worse - now by the time it's ready to launch Finder I get a bunch of wavy lines, like a loss of horizontal sync... thought I would at least get a few weeks out of it before needing to get it recapped.

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I don't know if re-capping will fix the issue, but it needs to be done and it will give you one less issue to be concerned with.


When I get a 'new' machine that needs caps, I don't even turn them on, prior to re-capping it.  My theory is that if there are no errant voltages from the bad caps, then there is less chance of issues occurring downstream.  I do this with machines that historically need caps e.g. SE/30, LCIII, Mac II, etc. 

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I'm not a total newbie when it comes to pricing and buying old technology online. This particular Iici was advertised on Fleabay with such eye-opening superlatives like "Super Clean," "Near Mint," "Works Perfect (sic)" and "Flawless" so I was willing to pay a little more to say OK, at most I'll have to look at caps and the battery if it's an estate sale or family hand-me-down and they didn't have to do anything preventative. To say nothing of the two missing feet and scratches along the side (the side not photographed)


Well, I'm connecting the dots and the near-absent sound, I start to see a lot of electrolyte and I just decide not that I'm not up to the rehab job but not at the price I paid... for, as I'm trying to explain, old computers are like baseball cards and guitars - to people like us that collect this stuff, words matter and I can say for a fact I'd put up with all of the faults if it had the typical "As Is" verbiage we're used to seeing so we can pull the trigger w/ low expectations and maybe we'll get lucky and get a gem.


Sorry to turn this into a bitch post but the seller actually Googled around enough to call me on my personal cell phone to accuse me of scamming her - I shouldn't have opened it up (to change the battery) and damaged it," etc... she has a return policy so it really shouldn't matter why at this point.

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