4 Replies Latest reply: Aug 11, 2006 10:00 AM by Androcles
Richard Armitage Level 1 Level 1
I have a 1.25GHz G4 iMac, 768 MB memory & 80GB HD with 34GB available. performance is and always has been rock solid but recently I've noticed it's getting really slow opening applications eg Firefo, Word etc. I get the spinning beachball for 5-10 seconds before the app opens. Once it's open then everything is good and fast.
Clearly I need to do a bit of tweaking to get the performance back to what it should be but I don't know where to start.
Any suggestions would be greatly appreciated- thanks!

1.25GHz iMac, 800 MHz iBook, 600 MHz Powerbook, Mac OS X (10.3.9)
  • maccraft Level 1 Level 1
    i had the same problem with my imac and i was told to repair the permissions using disk utility.

    it worked for me but considering that i am no expert you may want to see if someone seconds my idea

    G3 ibook 800 and G4 imac 800   Mac OS X (10.4.6)  
  • Ian Bickerstaffe Level 6 Level 6

    Yep. Repairing permissions can help...

    Hard Drive > Application > Utilities > Disk Utilities.

    There are also some good and free Applications on the wibblywobblyweb...




    to name three.


  • Rob Level 1 Level 1
    Hi Richard,

    1st repair permissions using disk utility.

    load terminal up, found in app/utilities and enter the following line:

    sudo periodic daily weekly monthly

    It will ask for your admin password.

    then reboot, it will take 2-3 reboots before it starts to speed up again, but you don't have to keep restarting the machine this is just something you might notice.

    This cleans out the cache manually that programs such as Onyx does for you. If you leave your iMac on all the time (no sleep) it will run these for you after midnight sometime as it is a Unix maintanace script.


    "OS X runs its own (very basic) built-in maintenance routines, sometimes called "cron jobs," or "maintenance scripts," automatically between 3:00am and 5:30am each day. (There are daily, weekly, and monthly scripts.)"

    There is something else you can do which is called forced prebinding, this make OSX check the links to all the programs so it has the quickest route to them, have a look at the following page:


    Also just search the web for OSX maintanance stuff the more you read the better your system will become.


    G5 1.8Ghz DP & 15 iMac Mac OS X (10.3.9)
  • Androcles Level 3 Level 3
    I use Onyx (http://www.titanium.free.fr/). It's a free program that can help you to do maintenance on OS X.

    Try using the "cleaning" features and then use Onyx to run the repair permissions feature.

    Good luck!