8 Replies Latest reply: Jan 28, 2013 3:09 PM by rccharles
OldSchool9322 Level 1 (0 points)

My old Bondi iMac slot-loading G3 has suddenly lost 10GB of hard drive space. It was a 20GB unit since purchase, I continue to use it for some music software and haven't installed anything new on it for years. Can a section of the hard drive just disappear/go corrupt? I was saving files the other day and got an "out of disk" space error and thought "What?!?!" I checked the computer and there is now only 10GB of hard disk space available. No partitions or anything like that have been made, computer works fine except for the fact he's suddenly a little thinner! Any ideas?

iMac, Mac OS 9.2.x
  • a brody Level 9 (65,365 points)

    A program like Photoshop might have temporary storage space allocated to it in its preferences.   Or virtual memory might eat up hard disk space from the Memory control panel.     Or running a big program might take up a lot of memory if the virtual memory not setup or its memory allocation in the Finder Get Info window allows it to eat that much memory.  Directory issues could make disk space disappear, for that you might need an old copy of Disk Warrior 2.1.1.

  • OldSchool9322 Level 1 (0 points)

    Thanks for offering help so quickly! I've made sure virtual memory is off in Memory control and in the particular programs I use. But you are definitely onto something with the Directory issues. I run Tech Tool 3 relatively frequently for optimization and general "clean up" and that program never has any issues other than a few file date/time inconsistencies. But I recently ran Disk Warrior 2.1 (which has rebuilt the drive with no problems many times before) and got an "original directory is too severely damaged" message (error codes 2156, 2180). It also seems that all these old utility programs are freaking out that we are now in the 2013s - constant pop ups when trying to open them alerting me to a potential "datecannot be right" alert. Perhaps I should change the computer clock and try again? I am just out of ideas!

  • a brody Level 9 (65,365 points)

    Well if Disk Warrior can't repair the directory, it usually is sign of impending doom for the hard drive.

  • WZZZ Level 6 (12,795 points)

    When was the PRAM battery last changed? That would be related to the clock issues, but might be causing other problems if it's too weak.

  • edex67 Level 4 (3,250 points)

    This. The PRAM battery would cause the time issues ("Your computer is set to a time before 2001.")

    Also, it could be to do with temporary files from programs (i.e. not virtual memory).

    Finally, if none of this works the HDD may be dying and this is causing the errors (I have seen these symptoms before on a G4/450). Can you hear a clicking noise when you use the computer?

  • WZZZ Level 6 (12,795 points)

    deleted-- not applicable.

  • OldSchool9322 Level 1 (0 points)

    Wow, thanks for all the replies/suggestions guys, I really appreciate it!


    a brody: I fear you may be right. I did finally track down an updated copy of Disk Warrior 2.1.1 so I'll see how that works. I've run Tech Tools 3 and even Disk Utility (via Firewire) through my current iMac and they both seem to think the drive is fine. But it is concerning that Disk Warrior used to be able to rebuild the drive...


    WZZZ: PRAM battery has never been changed. That's something I should look into. Clock has only "died" once or twice and it hasn't happened recently. I zap the PRAM every now and then when running Tech Tools.


    edex67: Hmmm, no clicks. I don't think this is a temporary file issue but I'm going to run some wipe free space utilities. I too fear the HD is just on his way out.


    Thanks again, I will let you know if anything happens from all this!

  • rccharles Level 5 (7,065 points)

    How to upgrade slot loading iMacs


    There are two assemblies with the iMac G3. The crt and the computer. The crt is fully enclosed. The computer is a tray that slides off. Working with the computer tray should be safe.


    You need to get the 3 and a 1/2 inch ATA harddrive.  They are also known as parallel ATA or PATA. The iMac was designed to take a maximum drive size of 128gig.  The 120gig drives are the largest readily available. Odd ball sizes do not work like 7gig and 13gig.  Pick a size that appeared on the iMac G3 or is a common size greater than 20gig like 40, 60, 80, or 120. Sizes larger than 128 will work but you can access only the first 128gig without buying additional third party software.  For very large hd's, format the drive for 127 gig or less.


    Check out this site

    iMac HDD Upgrade Guide (Slot-Loading) Visual Installation Guide - slot loading iMac Hard Drive <a href="http://wn.com/How_to_Disassemble_an_Apple_iMac_G3" >Visual Installation Guide</a>





    You could try to locate the service and repair manual for your iMac on the Internet.

    iMac G3 600 is imac_summer01.pdf


    other names iMac_slotload_CD.pdf or iMac_early2001.pdf.