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  1. Important Information

    1. The 68kMLA Forum Rules   (7614 visits to this link)

      To quote vintage Apple manuals: "Read Me First!"

  2. Community Connections

    1. General 68kMLA News & Stuff

      What's going down in the barracks.

      3967
      posts
    2. Conquests

      Discuss your latest vintage Mac finds!

      37979
      posts
    3. Trading Post

      Feel free to trade all of your Mac goodies here with all honest intentions. The website provider assumes NO liability, so buyer beware! Please see this topic for more information.

      48780
      posts
  3. Projects & Hosted Forums

    1. RetroChallenge

      What can you do given only one month and strictly "retro" hardware? Find out with RetroChallenge!
      http://retrochallenge.org/

      1448
      posts
    2. 68kMLA Wiki

      The creation and maintenance of the 68kMLA's information repository.
      http://68kmla.org/wiki/

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  4. 68k Model Forums

    1. Compact Mac

      Macintosh, 512k, SE, etc.

      42300
      posts
    2. Mac II, Quadra & Centris

      Just think, having a Quadra 950 in 1992 would be like having a Mac Pro today… except with more slots, more expandability, and on-board SCSI!

      12164
      posts
    3. 68k LC & Performa

      Ah, the consumer computers!

      7474
      posts
    4. 68k PowerBook

      From the Portable to the 190cs.

      8966
      posts
  5. PowerPC Model Forums

    1. NuBus Power Mac, LC & Performa

      The NuBus architecture gets a new brain!

      2550
      posts
    2. PCI Power Mac & Performa

      The PPC comes of age and adopts the industry standard expansion slot.

      5627
      posts
    3. G3/G4/G5 Power Mac, iMac & eMac

      From the Beige G3 to the quad-core G5, via various iMacs!

      13167
      posts
    4. PPC PowerBook & iBook

      All that power in a laptop? Never…

      8603
      posts
  6. Everything Else…

    1. Apple I, ][, /// & Lisa

      Not really 68k Macs, but certainly Vintage!

      6880
      posts
    2. Newton

      The best PDA ever finally gets its own forum!

      955
      posts
    3. Software

      Includes system stuff, productivity, emulation, design, and games for pre-OS X Macs!

      16645
      posts
    4. Hacks & Development

      Yes, it's back! Hardware hacks/modifications and software development for Mac OS.

      16980
      posts
    5. Peripherals

      Anything you can hook up to your Mac or stuff into it as an interface!

      13416
      posts
  • Posts

    • This is likely a very dumb question, but I got a PowerMac G5 without a power cord and was wondering if I could use any power cord with it (I have a couple of generic power cords that fit).  Is there anything special about the apple power cord?
    • I have a special pry bar that came with a 68040-50 upgrade for my Q950. Very strong flat thin metal slightly curved at the end with teeth that fit in between the pins so it is easy to pop a CPU out without bending a pin.    
    • It could be the IDE cable I would think it would be the drive's power cable. Is they a manual eject?
    • Check the CPU address lines to the muxes UA8-UD8. Most of the time one of them is broken.
    • Thanks guys very helpful. I traced D24-D31 back to the ROM and PDS slot, everything fine there. Also fine were RA0-8 and the other lines RAS/CAS, etc back to the PAL ICs.   Were there any others I should check?   Unless there is something else - then I guess either the 253 mux’s or a bad PAL. Are PAL ICs known to die? Long shot but there a reliable source for replacements? seems unlikely 30+ years later anyone Is burning fresh ones...   Further info, my board is p/n 820-0260-10. It looks like an early revision as it has a factory cut trace to UI6.   PALs are marked: UE6 341-0637-A 918NNDKB UE7 341-0688-A 918YZLAB UG6 341-0635-A 921ZIMOB UG7 341-0633-A 918NLTJB UI6 341-0665-A 917NJFCB  
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