Question about Apple Power Mac G4 Dual Mac Desktop

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G4 MAC LOCKING UP

After boot, after few minutes, the computer locks up, I have changed the hdd and reload, changed the memory, what else can it be? system board, cpu, heat sync, and are they expensive to replace?

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  • Glenn Upton-Fletcher May 11, 2010

    Is there any history of this unit being dropped, fallen over etc.?

  • Andrew Bowmaker
    Andrew Bowmaker May 11, 2010

    By locking up, do you mean freezing, or slowing down? Do you hear clicking coming from you MAC sometimes?

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After boot??? Have you tried holding down the shift key (Safeboot). If you can log into your account then check startup items in systemprefs/user accounts/startupitems

If it still crashes you need to create a new user account. Log in and if that works then copy all data from old account by using Batch Mod on old users folder. Do not copy anything from user library.


Posted on Jul 15, 2008

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Posted on Jan 02, 2017

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Thank for contacting Fixya, I will be glad to assist you.

Here are some steps you can try to resolve the issue:
• First, hold in your power button for approximately 10 seconds to do a hard shutdown.

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• Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously .

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