Question about Apple PowerBook G4 Mac Notebook

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Ibook G4 14" 1.4mhz

Hi can you help me as i have a ibook G4 and it starts then sundenly goes straight to sleep, it wont wake from battery, but will wake from power only for a couple of seconds then goes back to sleep? thanks tony

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  • tonydj00 Nov 15, 2007

    hi thereive tried to use it with diffrent power surplys and battreys? all the same can you surgest anything else, oh ive tried resetting the pram too

  • sieber61 Dec 22, 2008

    Does a bad battery affect sleep mode even when plugged into the power supply? I tried all the resetting suggestions and it goes back to sleep after a tiny moment showing the desktop.



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On an Apple system, this is an indication that it thinks there is little or no battery left and goes to sleep to protect data loss. Your battery might be going bad (showing a full charge, but lasting for only a few minutes) or there may be a problem with your power supply.

Posted on Nov 14, 2007


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My ibook won't charge. Everything works fine when it is plugged into wall socket Battery shows a black x in the battery indicator in menu bar. Computer has been idle for 60days as I was gone from home. I...

font.f1 {font: 12.0px Helvetica} Thanks for asking your question with Fixya Support. I will be glad to assist you.

To help with getting your battery to charge, try resetting the PMU

The Power Manager (PMU) is an integrated circuit (computer chip) that is usually on the logic board of your Mac computer.

It is responsible for power management of the computer. It controls backlighting, hard disk spin down, sleep and wake, some charging aspects, trackpad control, and some input/output as it relates to the computer sleeping.

• If the computer is on, turn it off.
• Now refer to this article from Support
Resetting the PMU for Powerbook and iBooks

If this process does not help to allow your battery to charge normally, you more than likely have a battery which may be either dead or eventually will die in its charge capability.

What I would recommend if that is the case, would be to consider purchasing a new battery from Apple or via a third party reseller like online Apple authorized resellers like, or Fry's Electronics for example. You may also Google with keywords "purchase iBook battery " and shop for the best priced iBook battery.

Again, you would only consider the latter, if the former procedure listed above does not help.

I hope this helps.



Feb 04, 2011 | Apple iBook G4 Mac Notebook

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I have an officejet 6500 wireless printer and the printer goes to sleep and wont wake up without unplugging it.

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I just got an ibook laptop and it just shut down on me. It has a light somewhat blinking but i dont know whats going on. Ity doesnt turn on. do you know what theproblem might be?

It could be that it has gone to sleep. If you press any key on the keyboard it should wake up. To set the amount of time tbefore it goes to sleep go to the apple menu top left hand corner of the screen then down to system preferences and then the control panel energy saver and select the length of time before the display is put to sleep. Unchecking the box that says "put the hard disk(s) to sleep when possible" will also help but the macbook's battery will run down faster. Hope this helps

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Machine shuts down, might start again in a day or so

This may solve your issue:

The PMU is a microcontroller chip that controls power functions for the computer. The PMU is a computer within a computer, as it has its own memory, software, firmware, input/output, a CPU, and more. Its function is to:
  • Tell the computer to turn on, turn off, sleep, wake, idle, etc.
  • Manage system resets from various commands.
  • Maintain parameter RAM (PRAM).
  • Manage the real-time clock.
Over time, the settings in the Power Manager may become unusable, which can result in operational anomalies with the computer. Examples include not turning on, not waking from sleep, or not seeing devices plugged into the USB and FireWire ports, among others.
Resetting the PMU is not intended for resolution of a stall or situation in which the computer is unresponsive. A PMU reset should not be necessary except as a last resort in cases where a hardware failure of the power management system is suspected. Performing a PMU reset returns the computer hardware, including NVRAM, to default settings and forces the computer to shut down.

Click on this link or copy and paste the complete link into your browser.
If I could be of further assistance, let me know. If this helps or solves the issue, please rate it.
Thanks, Joe

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1 Answer

When I put my ibook G4 to sleep it wakes up

change your setting in energy saver prefrences under option uncheck the option restart after power failure. it helps you. plz rate this if helpfull

Mar 19, 2009 | Apple iBook G4 Mac Notebook

1 Answer

Dead sleep

happened to us many times, the sleep to death error
logic board problem. buy a new mac realy.

try this, reset prom

take out the power cord. press hold the power button
and plug the power then takeoff power button and press it again.

try this, press hold P and I and power on

Feb 21, 2009 | Apple iBook G3 Mac Notebook

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