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Thread: Original 128K Mac keeps restarting shortly into OS disk boot

  1. #1
    Join Date
    Feb 2013
    Location
    Livermore, California
    Posts
    242

    Default Original 128K Mac keeps restarting shortly into OS disk boot

    Hello Everyone.

    I have an original Macintosh 128K that powers up, happy faces, and starts to boot the OS disk, but after a few heads seeks the computer restarts and does it all over again. I've tried this with every startup disk I have and it exhibits the same behavior.

    I cleaned and re-lubricated the drive and cleaned the head, so I don't think any of that is the problem.

    Any ideas appreciated.

    Thanks!

    Sellam
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  2. #2
    Join Date
    Dec 2008
    Location
    libtard capital, California
    Posts
    1,029

    Default

    My guess is that either the power supply is going (drive is pulling more current than it can supply) or some RAM has gone bad.

  3. #3

    Default

    Are you booting it from the internal floppy drive? Have you tried booting from an external drive if you have one? Also try booting a different OS version. I have one of the original Mac128k that also does the same thing when I bought it. I took it apart and cleaned & lubricated the internal drive. It now works great!

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