G4 MDD Sometimes Doesnt Finish Booting

Discussion in 'PowerPC Macs' started by Retrosonic, Aug 6, 2010.

  1. Retrosonic macrumors regular

    Joined:
    May 13, 2009
    #1
    Guys, i hope someone can help me with this.

    Recently, I completely rebuild a G4 MDD. Installed OSX. The machine runs GREAT, I'm very happy with it.

    There is only ONE problem:

    When I boot up the machine, maybe 4 times out of 10, the screen goes to the white, then to the blue, but it never finishes booting into the main screen
    with all the icons. When this happens, I unplug, boot again, and THEN it works all the way to the main screen.

    What could be causing this and is there a way to fix it? Other than this, the machine is awesome and runs great.

    Please offer ANY suggestions you may have, I would be most appreciative.

    Retro
     
  2. max¥¥ macrumors 6502a

    Joined:
    Aug 7, 2008
    Location:
    Over there....
    #2
    try going into disk utility and do a permissions repair
     
  3. Hrududu macrumors 68020

    Hrududu

    Joined:
    Jul 25, 2008
    Location:
    Central US
    #3
    Hows repairing permissions supposed to fix a booting problem?
     
  4. max¥¥ macrumors 6502a

    Joined:
    Aug 7, 2008
    Location:
    Over there....
    #4
    just said that as a couple of weeks ago my ibook would not boot past the gray screen every other boot and i did a permission repair and it sorted the problem
     
  5. Argon21 macrumors member

    Joined:
    Jun 25, 2010
    Location:
    Алейск, RUSSIA
  6. Retrosonic thread starter macrumors regular

    Joined:
    May 13, 2009
    #6
    Update:

    Thanks, but Its not the PRAM battery...i replaced it a few weeks ago when I rebuilt the machine.


    Well, I ran "repair disk permissions" and it found like 8 things "different". So I ran repair, hoping that was the problem. when it finished, I rebooted, and it came up. But on the second boot, it got stuck again on the blue screen.

    So, I went BACK to repair permissions again, and again it found like 8 things "different"...What gives?

    I'm grateful for the help guys. Does anyone have any other ideas?

    thanks,
    Retro
     
  7. Retrosonic thread starter macrumors regular

    Joined:
    May 13, 2009
    #7
    Any Ideas?

    Does anyone have any ideas?

    thanks!
     
  8. 666sheep macrumors 68040

    666sheep

    Joined:
    Dec 7, 2009
    Location:
    Poland
    #8
    If your problem occurs randomly, i'd suspect HDD. Boot from OS Install disc and Verify HDD (not permissions) with Disk Utility. You can also use Disk Warrior, if you got a copy (or one of your friends has) to examine your HDD. It's more powerful tool, but not freeware.

    Other what you can do is to test RAM. Try to run with minimal amount of RAM and see if problem will persist. If will be OK, add next stick. You can also test your RAM with testing software like Memtest (there is old freeware version somewhere on MR). This can be done in PC too, if you have one compatible with DDR memory.
     
  9. drewdle macrumors regular

    Joined:
    Apr 26, 2010
    Location:
    Nanaimo, BC
    #9
    Is this machine running Leopard?

    Apple issued a software update for 10.5.4 and above addressing graphical glitches and hangs in G4 machines. Get it here: http://support.apple.com/kb/DL121

    Could be completely unrelated, but just one more thing to check. I noticed that my iMac exhibited strange video behavior under Leopard, seemingly at random, including this exact scenario. Under Tiger I had no issue, although my iMac was never officially supported for Leopard).
     
  10. Retrosonic thread starter macrumors regular

    Joined:
    May 13, 2009
    #10
    Update Aug 11

    Update:

    I went into disk utility and ran verify and repair of the HD and permissions.
    Good deal!!

    NOW, instead of occasionally hanging, it occasionally just "takes awhile" to get from the blue screen to the Main screen, but it does get there!!

    So, I could live with that.

    Drewdle: thanks for that link, I downloaded it, tried to run it, but it says that my Hard Disk "doesnt meet the requirements" to run the patch!!! No idea why, it doesnt tell me any more. Could it be the format? HD is running
    OSX 10.5.8 MAC OS Extended (Journaled)

    2nd update:

    Just booted again now, taking a while to get to the main screen , but it does get there.

    So, this "delay" seems like a boot issue of some kind. I'd bet there is a fix for this somewhere!!
     

Share This Page