Question about Apple iBook G4 Mac Notebook

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Screen won't turn on

I have a Apple g4. I got it from a friend. When I first got it everything was fine. Then the battery died. I got a charger and plugged the computer in. When I connect the plug it sounds like there is a disk spinning or maybe some sort of internal fan but I can't get the screen on not even sure if the computer is actually on. The green light is on on the battery but nothing else seems to be working. I noticed that there is a lock symbol on the left side of the computer with a little slot by it. What is that and is there any way that I can fix this?

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  • breezygarden Feb 05, 2009

    I have a Mac Notebook G4 and all of a sudden the computer sounds like it is turning on, and it makes a noise like a fan...but the screen won't light up? Can anyone help me


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I have a Apple g4. I got it from a friend. When I first got it everything was fine. . I got a charger and plugged the computer in. When I connect the plug it sounds like there is a disk spinning or maybe some sort of internal fan but I can't get the screen on

Posted on Feb 02, 2009

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When the computer boots does the screen light up? if it does the first thing you need to try is when you turn the computer on is to option boot. That is done by holding the option key while turning the computer on. after it boots you will see the the hard drive listed on the screen it will be a icon, if there you should be able to boot up. If the computer does not boot and your hard drive is still listed you most likely have a logic board aka mother board issue.

Posted on Jan 26, 2009

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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.
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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.

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Thank you for using
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Can you check the charger is outputing the correct amount of voltage, (power surge maybe)

Please rate our solutions and if you still have problems please call back for more ideas to help you

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