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trag

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Everything posted by trag

  1. trag

    The biggest haul I’ve ever made.

    If you present an image from which we can read the markings on the RAM SIMM chips, we can figure out the capacity from the datasheet(s) for the chips on the SIMM boards.
  2. trag

    Major Score! 8600 with Sonnet CPU, 3DFX card, Etc

    I have had good experience with the IWII adn the cut sheet feeder. I think the thickness of paper one uses may affect how well it works.
  3. trag

    SE/30 video issue that has ME stumped!

    Fun and informative narrative. Thank you.
  4. The trick is to find a card which uses teh same chipset as was used by a card for which there are Macintosh drivers (extensions/CP). 3Com tended to make their own chipsets, so unless there was a 3com based Macintosh card, that's probably not goign to work.
  5. trag

    Floppy drive for Macintosh IIfx

    I didn't read the middle very carefully, but I think the page is incomplete in terms of what was once widely known floppy information. Near the end of the page, the author writes that auto-inject floppies failed in the PM8500, with the symptom that they continuously tried to eject. IIRC, this is caused by using the wrong floppy cable. There are red striped and yellow striped floppy cables and the wrong one causes that symptom in auto-inject floppies, again, IIRC.
  6. trag

    Major Score! 8600 with Sonnet CPU, 3DFX card, Etc

    There was a "Cut Sheet Feeder" attachment available for feeding regular paper. Or you can feed it in one at a time.
  7. Just wanted to say "Thank you" for addressing my issue/concern. I'll try to get that disk up. I need to check the Shareware agreement, and make sure that form of distribution is allowed. And if the author is still around, maybe I can actually send in the shareware fee -- if I get to a point where I can play the game.
  8. trag

    Damaged ROM SIMM Socket on SE/30

    Still thousands of the 64 pin ROM socket available here: https://www.connectorpeople.com/Connector/TYCO-AMP-TE_CONNECTIVITY/8/822019-2
  9. Unless it was some bizarre early model, it does not need a ROM DIMM. The ROMs are soldered down, and the socket is there for later potential upgrades/updates/revisions. On the 8500 the ROM chips are on the back of the board. They are four .5" X 1.1" 44 pin chips with 22 pins down each long side. Should be labeled 341S0168 through 341S0171, IIRC. Could be 0169 through 0172. Might be 343 instead of 341. Memory is rusty. Most likely what you removed was an L2 cache DIMM, although, as I mentioned above, it's possible yours had a ROM DIMM. I don't think I've ever heard of an 8500 without soldered down ROMs though.
  10. I had time this weekend to experiment with my old miniVMac installation. I have the full version of Dungeon of Doom, but it says it is version 2.0 in the about screen. I didn't know versions got up to 5.4. Anyway, the specific problem is that no keyboard inputs work at all. Things like cmd-d for drop of cmd-g for get have zero effect. I end up having to do everything with the mouse and the menus. I never experimented much with minivmac so I am a totally unsophisticated user. It's entirely possible I'm doing something wrong, or have a out of date version of minivmac or something. At the time I did post to some forums asking about the issue I experienced, and no one ever responded. Anyway, point being, it would be great if the keyboard commands work on your emulator. Maybe that's not a major issue. Maybe my problems are a user issue. I'd be happy to send you my disk image of Dungeon of Doom.
  11. Well, keep in mind that's a really old memory and I only read about NetDoubler, didn't use it. So do not be surprised if I'm wrong. I would hope there'd be a ReadMe file or something in the user instructions that would tell you.
  12. IIRC, Net Doubler only works between two machines which are each running it (and have installed compatible Asante hardware?). I always assumed it was some kind of compression before transmission software, but that's probably wrong. Hardware of the time probably wasn't able to compress on the fly that well.
  13. Wow, Toni_, thank you. Talk about responsive. I'll try to figure out exactly what problem I was having. The trick is remembering to do it after I get home, where older Mac is. The problem was pretty specific and darned annoying.
  14. I didn't notice this thread almost a year ago when you were asking for game suggestions. Very cool concept and execution, BTW. If it's not too late, I would like to suggest the old game, "Dungeon of Doom". I'm not sure about the providence at this point. I bring it up, because when running it under miniVMac it has a problem with, IIRC, a keyboard function. I want to say for dropping items, but it's been a long time ago. When it didn't work right, I stopped trying to play it. Anyway, I'd love to see an emulator that works better. I can post/email a copy if you can't find it otherwise, if you are interested.
  15. trag

    Macintosh Classic II with missing ROMs

    The DIP (chips with pins downward on two sides) chips are getting a little thin on the ground. I'm not sure what vertical clearance the Classic II has, but these would allow you to use the equivalent PLCC32 chips: https://www.ebay.com/itm/Plcc32-to-dip32-programmer-adapter-ic-socket-converter-module-fq/153711824747?hash=item23c9f04f6b:g:QhUAAOSwXOhb1rHB
  16. You're welcome. Good luck and let us know how it goes. Those of us too lazy or too busy to work on projects enjoy reading the narratives of those of you who do work on projects...
  17. trag

    Another Mac SE/30 SCSI Problem

    Excellent work. Way to track down the problem.
  18. trag

    Asanté MacCon SE/30 clone

    That's right. Memory is creaking back to life. I think I picked those up when I was hoping to find some SMS[mumble]1000 or some such. A common 10/100 ethernet combo at the time. I used to do a lot of watching on Ebay for cheap lots, and when one came along, it was usually best to grab it, even if you still needed another component. Either I don't have same energy for watching, or there are not as many chip bargains as there once were. Used to be huge lots of flash chips at very low prices...
  19. trag

    Major Score! 8600 with Sonnet CPU, 3DFX card, Etc

    I think a lot of those Yamaha burners died. They had nice features for the time, but they only seemed to last three to five years, generally.
  20. There's a Larry Pina book that covers the IWII, and since those have all (AFAIK) been posted on line, you might search for it. It's probably something like Macintosh Printer Secrets or some such. Also, Tech Knight did a really good IWII repair/refurbishment thread on these forums a while back.
  21. trag

    Asanté MacCon SE/30 clone

    What is the transceiver chip? Is it either of the following, DP83840 or DP83223? I have about 50 of the former and over 150 of the latter... Beautiful work. I spent a while admiring the labeling and options on the board. It looks like you put a lot of thought into the details.
  22. trag

    Major Score! 8600 with Sonnet CPU, 3DFX card, Etc

    I've always had pretty good experience with Toast Titanium 5.1, which I think is the last version to support Classic Mac OS. Another option for optical drives these days is to get one of these: https://www.amazon.com/dp/B001B7XYZO/ref=cm_sw_em_r_mt_dp_U_T1DmEbW6HR47X which is a slot loading PATA DVDRW drive. The supply of 5.25" half height drives seems to have dried up, but these are still available. Unfortunately, the slim optical drives use their own connector, so one also needs a PATA slimline optical drive to 40 pin adapter. And some way to mount it. I like these, but their price bounces around https://www.amazon.com/dp/B007C1KPQY/ref=cm_sw_em_r_mt_dp_U_23DmEbRJA2GEV I use this mount for slot loading optical drives, but it also, supposedly, has room for four 2.5" drives. I shudder when I try to imagine the cabling if one fully packed it.
  23. The problem could be caused by many things. Another one that I've seen in my experience, at least on teh PPC601, was that getting heat sink grease on the pins caused an issue with the FPU. I don't really understand how the short that might cause could affect just the FPU, but it did. For the PPC601, the pins are around the outer edge of the chip, so that's where the heat sink grease ends up if one applies too much. On a PPC604e, I think it would take a little work to get excess grease under the chip and amongst the BGA balls. Probably not the problem in your case, but you know what, the heat sink grease could be worn out and the chip overheating. As long as you're gentle, it can't hurt to pull the heat sink, clean the old grease and apply new. And do a quick inspection to see if any has spilled over the edges of the chip.
  24. trag

    SE/30 PDS Adapter Epic Blunder

    32K X 32 is 128K of cache.... It's all on one chip, instead of spread over four. However, buying 32K X 8 chips that match the JEDEC standard of the original chips avoids any re-engineering. Tag-SRAM is an SRAM with comparators on board. It shouldn't be too difficult to create a replacement if you run out of existing parts. The challenge is making the new arrangement fast enough.
  25. trag

    SE/30 PDS Adapter Epic Blunder

    That is fantastic news! How many chjps in a tray? Guacamole. So how long until you guys are producing new ones? I have 800 IS61C632 (32K X 32 SRAM) that could be used for cache, if that helps...
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