Question about Apple iMac G4 Desktop

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Takes a really long time to boot up , locks up when any program is opened

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Have you tried reseting the pmu.

  1. Shut down the computer.
  2. Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
  3. Turn on the computer.
  4. Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
  5. Hold the keys down until the computer restarts and you hear the startup sound for the second time.
  6. Release the keys.
Good Luck

Posted on Sep 24, 2009

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Three major possibilities: corrupt OS, failing drive, failing logic board.
There are many ways to diagnose this, but each requires equipment or packages an average user may not have. You could boot from a DiskWarrior CD and run a disk rebuild; this would report disk hardware failures. You could boot from an external drive containing a bootable copy of the OS; if it still boots slowly and locks up, the logic board is suspect. You could reinstall your OS using archive-and-install; if this fixes the problem, it was a corrupt OS.

Posted on Sep 19, 2009


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