Jump to content


  • Content Count

  • Joined

  • Last visited


Profile Information

  • Gender
    Not Telling

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

  1. I'm so glad to see this closer to becoming a reality for people who want some extra RAM! Just out of curiosity @joethezombie, which PCB fabrication place did you use that was able to do 0.050" PCBs? All my experience is with hobbyist-level services like Seeed Studio and PCBWay which both just do 1.2 mm. To get the correct thickness, did you have to go to somewhere a bit more "professional" and less "hobbyist"? It still bothers me that I never quite got to the bottom of the SE/30 ROM SIMM thickness issue back in the day. At least, I think it was a thickness issue...
  2. I bought this exact same item from this exact same seller almost 5 years ago to replace the corroded SCSI chip in my IIx and it worked like a charm. I'm guessing the SE/30 uses the same chip too...
  3. Wow, that's awesome! Really nice work. This seems like for most use cases, it's going to be a much better option than LocalTalk-to-Ethernet adapters.
  4. I messed a lot with it when I was doing my initial ROM hacking. The startup chime also uses it
  5. Glad you got the installer to run! I wish I could help more, but my Cabletron card is actually a NuBus card in my IIci. Unfortunately I don't know any details about the SE/30 card or how to use it. Hopefully someone with an SE/30 might be able to chime in. I can tell you that my IIci's card has a switch -- the housing of the switch is blue, and the switch itself is white. It's in the down position (toward the RJ-45 jack) and I've been using the RJ-45 jack rather than the AUI port. I'm pretty sure 7.5 should be fine for networking. I use my card in 7.1 with no problems at all. I'm a
  6. Hi Grog, I ran into this same problem a while ago. Here's how I solved it, I think (seems to work in Basilisk anyway...): Extract cabletron.sit This should result in a folder called "Cabletron Ethertalk Installer" Rename this folder to "Ethertalk Installer" Now you can use the Installer inside of it. If the folder has any other name, it asks for the disk just like you're reporting. You can also create a disk image of the renamed folder using Disk Copy 6.3.3. That also seems to work in my testing.
  7. Yeah, I'm not sure where I originally got them, but those are the same schematics I was looking at. This must have been around the time Apple was transitioning to using the CUDA chip for power control. I think it's in control of the PRAM, so that's probably why the battery can power it too...maybe limiting current to minimize battery draw? Dunno. Not sure why the 12V part of the supply is involved at all. Well, darn. I was hoping it was going to be as simple as that diode having a problem.
  8. I did some digging on schematics, and the IIsi logic board has a resistor in series with a diode going from /PFW to 5V similar to the IIci. On the IIsi: R115 is a 3.3k resistor that should be connected to /PFW on one end, and D3 on the other end. D3 goes to 5V. Might be worth a check...
  9. Have you tried searching for the PC Exchange control panel? I think that's what it did -- allow access to FAT filesystems. I want to say that 7.5 came with it, but I can't remember for sure. I'm pretty sure it's possible to install it on 7.1.
  10. It's doing a low-level format, which takes a while. There is actually a way to skip the low-level formatting in newer versions of Apple HD SC Setup including 7.3.5. If you hold down the command key when you press Initialize, it skips the low-level formatting and does a quick format instead.
  11. Agreed, I would also guess it has to be something simple like reordering the data and/or address lines. Oh for sure...I have enough trouble remembering things from 2 years ago! Good to know! So it has to be some kind of simple "encryption" if we even want to call it that.
  12. I *think* that's the case anyway. I don't remember if we ever determined with 100% certainty that they're actually encrypted, but that would definitely explain why the dumps you obtained look like they're corrupted. I'm not sure if anyone has ever tried copying one of your dumped ROMs and putting it into a Turbo 040.
  13. Thanks! You're right...time flies! That is crazy.
  14. From what I remember, the content of the ROM chip on the Turbo 040 is encrypted, so you won't see what the actual Turbo 040 ROM contents are by dumping the chip. If you need to make a copy of the ROM to put in another Turbo 040, then yes, you'd need to do it this way. But you can actually dump the unencrypted ROM contents while booted into the Mac OS. Since the processor has to be able to read the ROM to execute code from it, you can read the contents of it too. You do this by dumping the 128 KB immediately after the 512 KB Mac ROM. I believe I actually made such a program a long t
  15. Yeah, it's super frustrating -- that thread really had a lot of cool stuff in it. It's sad not being able to go back and see it. If I had known this would happen I would have archived that whole thread so I could go back and look at it someday. Nope, I mean the ROM checksum I think you may be right that the RAM checksum was also disabled (maybe the Turbo 040 actually has its own configurable feature to do that too?). The thing about the ROM checksum is that I used to just change it to be correct after hacking the ROM, rather than patching out the checksum test. What I discovere
  • Create New...