kernal panic/black box----invalid memory access

Posted on 2009-02-15
Medium Priority
Last Modified: 2012-05-06
My ibook g4 1.33GHz has issues with start/restart.  Reinstalled Tiger. Yet it continues to "crash' to black box-- which says I need to restart computer.  If I shutdown and leave the computer alone for sometime, it will reboot into OS X and it's usually good until you ask for restart. The screen stays black with no reboot.  I shut G4 down and restart into Open Firmware with message--invalid memory access. At this point, if I type in mac-boot, a folder with question mark shows up.. If I type shutdown, it shuts off fine. Upon reboot the screen is black or if I attempt to reset pram, it goes to Open Firmware with IMA message. If I try to reboot with Install CD, it goes to Open Firmware. It I set the G4 aside for an hour or so, it usually reboots fine but, if I tell it to restart, it either goes black or ends up with Open Firmware.  When the G4 is running in OS X it functions fine.
Question by:robbiten
LVL 53

Expert Comment

ID: 23646391
Here is a pretty comprehensive guide to dealing with kernel panics:  http://www.thexlab.com/faqs/kernelpanics.html

Try starting in safe mode by holding down the shift key. Then open Disk Utility and see what the SMART drive status of your drive is. Then run Verify Disk to see if you have any disk directory corruption.

Have you added third party RAM lately?

Author Comment

ID: 23646819
THANKS.......unable to access Disk Utility to check SMART status.  No third party ram in place--it was removed.  About ready to tear her down.  Considering removing the airport card attached to MB and check the video chip pins 1 & 28 for looseness.  Other than that, it could be time for a another logic board. Any further thoughts would be greatly appreciated.  Rob

Accepted Solution

ee_auto earned 0 total points
ID: 24372412
Question PAQ'd, 500 points refunded, and stored in the solution database.

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In this article we will discuss some EI Capitan Mail app issues and provide some manual process to resolve them.
While there are many new features for iOS 11, these are the five that can improve your digital lifestyle.
Are you ready to place your question in front of subject-matter experts for more timely responses? With the release of Priority Question, Premium Members, Team Accounts and Qualified Experts can now identify the emergent level of their issue, signal…
With just a little bit of  SQL and VBA, many doors open to cool things like synchronize a list box to display data relevant to other information on a form.  If you have never written code or looked at an SQL statement before, no problem! ...  give i…

829 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question