• Updated 2023-07-12: Hello, Guest! Welcome back, and be sure to check out this follow-up post about our outage a week or so ago.

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    PowerExpress/PowerMac 9700 Prototype

    Hey Elliot, I know it’s a been awhile, but I never noticed this for some reason. Do you still want that System file?
  2. C

    OK to put an SE/30 power supply PCB in ultrasonic cleaner?

    That’s exactly what I thought when I looked at it. I’m going to use IPA on just the board. I was worried because literally the entire top of the board was covered with capacitor liquid, and I wanted to make sure I got all of it.
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    OK to put an SE/30 power supply PCB in ultrasonic cleaner?

    I’m using SRA TruPower #35 and distilled water, usually at 50C for 5 minutes per side. I have plenty of IPA so I am probably going to carefully wash just the board with that.
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    OK to put an SE/30 power supply PCB in ultrasonic cleaner?

    I just finished recapping the analog board and power supply in an SE/30. I have put many PCB in my ultrasonic cleaner with no issue, but this Sony power supply has some components on it that look like they might not like the ultrasonic bath, like whatever this one that looks like a roll of tape...
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    Killed a ROM in a Classic II

    Here is some pictures of the logic board after recapping and cleaning: https://imgur.com/a/9C4ULXe
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    Killed a ROM in a Classic II

    I wish that was it. I tried disconnecting the hard drive and got the same result. Then I tried disconnecting the floppy, then I tried disconnecting both, with no difference. Since I have two of these computers I still have a known-good logic board I can test with, and it boots fine with this...
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    Killed a ROM in a Classic II

    I'm starting to think I killed the processor when I booted it with that RAM chip in backwards.
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    Killed a ROM in a Classic II

    Well copying the known-good ROM onto a fresh AT27C010 fixed that issue, but now I have a problem where the recapped board boot loops once and then sad-macs with code 0000000F 00000001, no matter what ROM I use in it.
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    Killed a ROM in a Classic II

    I’m in Reno Nevada. I have two with the same 4-chip board, so I’m going to try copying the known good ROM I have first, before I look for a donor board. Thanks for the help though.
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    Killed a ROM in a Classic II

    This did help. Since I have a working #4 chip already, I am going to just copy that one onto a new chip, as Bolle suggested. I ordered a programmer and some blank 27C010 eproms. They are apparently still readily available in DIP32.
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    Killed a ROM in a Classic II

    I have two Classic II's that I have been working on restoring. This is my first re-cap adventure. I recapped one of the logic boards with tantalums, then cleaned it with an ultrasonic bath and PCB cleaner. When I put the ROM chips back, I accidentally plugged one of them (U25) in backwards, but...
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    PowerExpress/PowerMac 9700 Prototype

    Wow, looks familiar too! Is this Hap's? Here's the (mobile) link...
  13. C

    PowerExpress/PowerMac 9700 Prototype

    For those that need it, here is the ROM I dumped: TriPEx.ROM.zip
  14. C

    PowerExpress/PowerMac 9700 Prototype

    Mac OS 8.6 System Profiler: Picture 2.pdf Picture 4.pdf It's a Powerbook! lol.
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    PowerExpress/PowerMac 9700 Prototype

    I was able to boot to an 8.6 install CD and connect to my Linux server over AppleTalk so that I could format the SCSI2SD with Lido. It would have been a lot easier with a USB floppy drive! I threw 8.6 onto the SCSI2SD since I knew that version worked. I recovered 90% (I didn't copy some...
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    PowerExpress/PowerMac 9700 Prototype

    I don't know, I've never even seen a screen like that before. I don't believe this is a new-world Mac.
  17. C

    PowerExpress/PowerMac 9700 Prototype

    And there it stands for now. I don't want to stress the hard drive, so I'm switching to booting from the SCSI2SD to try to copy some files.
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    PowerExpress/PowerMac 9700 Prototype

    Hard drive sounds bad. Knocks for awhile, then works normally, then starts knocking again. More picture momentarily. Startup chime is like Shwa-na-na-na-na...
  19. C

    PowerExpress/PowerMac 9700 Prototype

    The USPS Gods have brought the mouse a day early, as a sign that they favor this endeavor! I now have everything I need to boot this beast. Here we go...
  20. C

    PowerExpress/PowerMac 9700 Prototype

    Oh yes, I understand. I stare longingly at TriPEx™ every day and suppress the urge to boot it and then pull the plug at the desktop. My SCSI2SD and PRAM batteries arrive today, and the mouse gets here Saturday.  :)
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