Results 1 to 2 of 2
  1. #1

    Member Since
    Apr 05, 2011
    Imac G5 Isight Issue ( 2.1 GHz, 20 inch)

    I currently have a iMac G5 (iSight) 2.1 GHz, 20 inch.

    The issue is that it seems to be suffering from random screen freezes which can only be resolved by a hard reset. This can occur at random intervals.

    Intially I had an issue whereby the operating system would not install and freeze upon startup or get to a certain point and then freeze. I over came this by removing some ram and then after the system sat at 1 min remaining on the install for approx 3 hours I pressed a few buttons to get a install log and the process completed.

    Once fixed the issues continued, the fax runs loud and suffers system freezes again that can only be exited via the hard reset. This can happen upon start up or at random intervals.

    Any ideas gratefully recived. I have however tried the reset smu, nvram combo's.

    Thanks in advance.

  2. #2

    chscag's Avatar
    Member Since
    Jan 23, 2008
    Keller, Texas
    2017 27" iMac, 10.5" iPad Pro, iPhone 6s+, iPhone 7+, Numerous iPods, High Sierra
    System freezes are usually associated with a hardware problem. First suspect is memory. That should be easy enough to check either with software or by substitution. A free memory checker can be downloaded from here.

    The second suspect is the graphics processor. Since that's hard wired on your G5 logic board, about the only thing you can do is run the Apple Hardware Test to see if it shows up with an error. See this LINK.

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Replies: 4
    Last Post: 11-07-2012, 04:56 PM
  2. Problems restarting iMac G5 (20-inch iSight)
    By Paulito in forum Apple Desktops
    Replies: 1
    Last Post: 07-10-2011, 08:54 PM
  3. Memory Upgrade for iMac G5 1.8 Ghz without iSight
    By imben123 in forum Apple Desktops
    Replies: 1
    Last Post: 08-01-2010, 06:53 AM
  4. What can I do with iMac 20 inch 2.4 ghz internals?
    By Chungek in forum Apple Desktops
    Replies: 5
    Last Post: 04-14-2009, 12:32 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