9 Replies Latest reply: Jun 5, 2013 9:59 AM by rccharles
parhillsguy Level 1 (0 points)

What is causing my G5 Imac to be painfully slow? Could it be excessive emails not deleted?

iMac G5 (20-inch iSight), Mac OS X (10.5.4)
  • Klaus1 Level 8 (47,775 points)

    If they form part of a hard drive that is too full, then yes!


    How much free space is left on your hard drive?

  • parhillsguy Level 1 (0 points)

    44 GB remain of 232GB available.

  • Klaus1 Level 8 (47,775 points)

    parhillsguy wrote:


    Could it be excessive emails not deleted?

    Is it only Mail.app that is slow? If not, what particular actions are slow?


    If you are on 10.5.4 why not update to 10.5.8?

  • rccharles Level 5 (7,598 points)

    Run activity monitor & see what is happening.


    You may want to run these "standard" fixes if the problem persists.


    1) You should run disk utility

         a) verify the disk

         b) update your permissions.


    2) Try a safe boot.

        Shutdown your machine.  Hold down the shift key.  Poweron.  Wait awhile Wait awhile while you harddrive

          is being checked.




    Have you thought of about addressing your performance problems?


    Activity Monitor
    Look at what is happenning with your Mac when you run Activity Monitor.
    Macintosh-HD -> Applications -> Utilities -> Activity Monitor
    Click on the CPU tab on the lower half of the window to see how much time you are using and if any applications are hogging the CPU.


    You can gain some understanding of Activity Monitor by  looking at it every once in a while.  Look at the small graph.


    Here is how I have my cpu display set up:




    "AppleJack is a user friendly troubleshooting assistant for Mac OS X. With AppleJack you can troubleshoot a computer even if you can't load the GUI, or don't have a startup CD handy. AppleJack runs in Single User Mode and is menu-based for ease of use."


    You can use the console application to examine Mac OS log files.  The logs will contain information on various system processes.


    Macintosh-HD -> Applications -> Utilities -> Console


    File > open console log
    this will display the startup messages


    file > open system log
    once the system is started, messages will go into the system log


    Other folks
    bdaqua advises running disk utility from install disk and performing a safe boot:


    Allan Jones  advises running automatic maintenance scripts and checking for free disk space:


    K Shaffer    advises checking for available RAM and checking for free disk space:

  • parhillsguy Level 1 (0 points)

    My bad,I am running 5.8, not 5.4.

  • parhillsguy Level 1 (0 points)

    Yikes! This is all very helpful but also very confusing and ,to be honest, scary. I am not a new user but I am not familiar with all the tech jargon.

    rccharles, how do I run disk utility,verify disc and/or update permissions?

  • Klaus1 Level 8 (47,775 points)

    Repairing permissions is important, and should always be carried out both before and after any software installation or update.


    Go to Disk Utility (this is in your Utilities Folder in your Application folder) and click on the icon of your hard disk (not the one with all the numbers).


    In First Aid, click on Repair Permissions.


    This only takes a minute or two in Tiger, but much longer in Later versions of OS X.


    Background information here:




    and here:




    An article on troubleshooting Permissions can be found here:




    By the way, you can ignore any messages about SUID or ACL file permissions, as explained here:




    If you were having any serious problems with your Mac you might as well complete the exercise by repairing your hard disk as well. You cannot do this from the same start-up disk. Reboot from your install disk (holding down the C key). Once it opens, select your language, and then go to Disk Utility from the Utilities menu. Select your hard disk as before and click Repair:




    Once that is complete reboot again from your usual start-up disk.


    More useful reading here:


    Resolve startup issues and perform disk maintenance with Disk Utility and fsck




    For a full description of how to resolve Disk, Permission and Cache Corruption, you should read this FAQ from the X Lab:




    Apple's advice on general maintenance:



  • parhillsguy Level 1 (0 points)

    Fantastic! I did the "repair permissions " and everything seems to be muck smoother/faster.Thanks much.

    Q? / I didnt do anything else (yet). Is "Start up disc) an internal item or are you referring to the disc(s) that came with os 10.5 ?(cds)

  • rccharles Level 5 (7,598 points)

    Q? / I didnt do anything else (yet). Is "Start up disc) an internal item


    Your startup disk is your internal harddrive.  In order for your computer to run it needs an Operating System ( its the software that makes your computer go. )  The start disk is the harddrive on which the Operating System is stored. It is also called boot disk on PCs


    referring to the disc(s) that came with os 10.5 ?(cds)

    These are called the installation discs. They are dvds.


    If you machine is running well, best stop messing with it while you are ahead.