Results 1 to 6 of 6
  1. #1


    Member Since
    Sep 10, 2011
    Location
    Vegas
    Posts
    94
    Specs:
    15" MacBook Pro 2.2GHz i7 Quad Core 16GB 240GB 6G SSD+750GB HDD Optibay External USB SuperDrive
    PowerMac G5 not fully booting
    I have an old PowerMac G5 that turns on but no chime, no video, no light above the power button. When I press the power button the light comes on then just blinks twice and goes away. No red lights on the inside. Fans and everything inside seem to be working fine. Ram is good. PRAM battery is good. Cannot reset PRAM because it does not boot to the point of recognizing the keyboard. Anything else I could try?

  2. #2

    Ramimac1's Avatar
    Member Since
    Dec 29, 2010
    Location
    Las Vegas
    Posts
    263
    Specs:
    2010 i3 27" 16gb Ram
    There is a smu reset switch this worked for me in the past

    How to reset the SMU on a Power Mac G5 (Late 2004) or Power Mac G5 (Late 2005)
    Old time Computer Hardware Tech
    Ohh My Typing Sucks Live with it

    Snoopy is the Man !!!

  3. #3

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    21,711
    Specs:
    Imac 27" Retina 3.3GHz, 512GB Flash, 16GB memory, OS X.11.4.
    And if no joy the PSU may be gone.

    Really hardly worth the expense if it is the power supply. If you look for a second hand unit, if that is the problem, make sure you get the model right.
    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!

  4. #4


    Member Since
    Sep 10, 2011
    Location
    Vegas
    Posts
    94
    Specs:
    15" MacBook Pro 2.2GHz i7 Quad Core 16GB 240GB 6G SSD+750GB HDD Optibay External USB SuperDrive
    Tried the PSU also. No go. I just read about a trick of heating up the ram area? It's worth a shot I guess..

  5. #5


    Member Since
    Sep 10, 2011
    Location
    Vegas
    Posts
    94
    Specs:
    15" MacBook Pro 2.2GHz i7 Quad Core 16GB 240GB 6G SSD+750GB HDD Optibay External USB SuperDrive
    So I held in the power button for a few seconds and it made a kind of beep sound. I then turned it off. Push the power button again and I got the chime. Still not fully booting to where keyboard is active and no video. There's also a little red light on the inside that you can see from the front (not the one that comes on when the plastic door is not in place.) Any ideas on this?

  6. #6

    harryb2448's Avatar
    Member Since
    Nov 28, 2007
    Location
    Nambucca Heads Australia
    Posts
    21,711
    Specs:
    Imac 27" Retina 3.3GHz, 512GB Flash, 16GB memory, OS X.11.4.
    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. PowerMac not booting
    By cs2eye in forum OS X - Operating System
    Replies: 2
    Last Post: 10-31-2011, 11:00 AM
  2. HELP PowerMac G4 Not Booting OS Issue
    By BenMacUK in forum Apple Desktops
    Replies: 3
    Last Post: 08-21-2011, 11:49 PM
  3. PowerMac G4 booting but not showing.
    By Oiz in forum Apple Desktops
    Replies: 5
    Last Post: 10-31-2009, 12:24 PM
  4. Powermac G5 DP 1.8- booting issues
    By captainstabbin in forum Apple Desktops
    Replies: 0
    Last Post: 07-25-2009, 09:37 PM
  5. Powermac G3 CD Booting
    By Crash_Beta in forum Apple Desktops
    Replies: 1
    Last Post: 04-22-2007, 10:45 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
  •