Released in 2003, the iBook G4 replaced the iBook G3 as Apple's portable consumer computer.

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Why my system stop working?

Dear specialist;

I have an ibook g4 and it suddenly stop working, I mean Hanging, after 30 min. In this situation display is working, numlock or caps lock can be on or off but system is locked and I can not do anything, only I can push power key for seconds to turn my system off.

I'm Sorry about my tribble english writing, I'm not an english native speaker.

Best regards.

S. Rohany.


My email address is:

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1 Answer

Chosen Solution

There are

many possible reasons this would suddenly start happening, but without more background information (what have/are you doing right before the hang) it's impossible to accurately diagnose.

Some possible reasons could be:

  • overheating that's an old machine and could be full of dust, or the thermal paste dry and inefficient, senors or fans starting to fail.
  • A failing HD
  • Problematic New RAM or other hardware.
  • New software attempting to "phone home" in the background to check for updates or registration and hogging resources until it times out or gives up.
  • A network issue, similar to above but possibly email or video streaming application, Some applications are notorious for this.
  • Corrupt preferences or permissions

Provide more details to receive more assistance, OR search "Hang" or "freeze" and look at Answers for other solutions.

Remember to return and mark accepted the answer that best solves your problem.

Good luck,


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Thanks alot machead3.


You're welcome! Hope you find/get an solution.


One other known issue - old battery loses power, can cause wireless problems which may see to be "hanging".


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