Results 1 to 2 of 2
  1. #1

    Member Since
    Dec 29, 2010
    PowerPC G5 Freeze with Pattern
    I have an iMac G5 1.8 GHz powerpc that freezes and displays a pattern of horizontal and vertical lines over the entire screen. Just upgraded to Leopard few months ago. What could be causing this? Thanks.

  2. #2

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Nambucca Heads Australia
    iMac, i7 4GHz, 32GB memory, 1TB Flash Storage, OS X.12.6.
    G'day and welcome to the forums, pity under such circumstances.

    Indications are failing logic board and here is a similar post from Apple Discussions, same problem same model iMac:-
    Hang on to those original install discs like grim death! Using OS X.7 or later make a bootable USB thumb drive before running Installer!

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Preview corrupted? - shows checkerboard pattern on PDFs
    By agd21 in forum Switcher Hangout
    Replies: 1
    Last Post: 11-17-2012, 03:06 PM
  2. Strange grid/pattern over icons and mouse
    By otispringle in forum macOS - Operating System
    Replies: 3
    Last Post: 07-25-2012, 07:04 PM
  3. G5 Weird Digital Grid Pattern around Icons
    By civ in forum Apple Desktops
    Replies: 4
    Last Post: 04-24-2011, 07:03 PM
  4. checkered pattern upon start up of macbook pro?
    By lovelier in forum Apple Notebooks
    Replies: 0
    Last Post: 09-26-2010, 02:19 PM
  5. charging pattern?
    By thadoggfather in forum Apple Notebooks
    Replies: 4
    Last Post: 06-10-2006, 01:48 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts