iBook G4 No Chime or Boot

Discussion in 'PowerPC Macs' started by n0cus, Sep 19, 2014.

  1. n0cus, Sep 19, 2014
    Last edited: Sep 19, 2014

    n0cus macrumors 6502

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    #1
    Hey Everyone!

    I recently upgraded my iBook G4 12in 1.07GHz to have a SuperDrive. Before I installed the bottom case, everything was fine. After I put the case on, the computer refuses to boot or even give me a chime. The only signs of life are the SuperDrive spinning a little bit and the green charge light. Any help is appreciated.

    Thank you everyone!
     
  2. Altemose macrumors G3

    Altemose

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    Elkton, Maryland
    #2

    PMU reset?
     
  3. n0cus thread starter macrumors 6502

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    #3
    I tried the PMU reset with no avail. I think it might be the pin 28 issue. I am trying to solder it as I speak.
     
  4. Altemose macrumors G3

    Altemose

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    #4
    Have fun...
     
  5. n0cus, Sep 19, 2014
    Last edited: Sep 19, 2014

    n0cus thread starter macrumors 6502

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    #5
    Reporting back, I did not succeed. :D Oh, well!
     
  6. Altemose macrumors G3

    Altemose

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    #6
    Sir Intell will probably know what parts to check.
     
  7. Intell macrumors P6

    Intell

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    #7
    I HATH BEEN SUMMONED MY THY NAME. *Puts cheese hat on Altemose*

    I'm surprised you didn't suggest a dead PRAM battery. Must finally be sinking in that iBooks don't have those. Have you tried disassembling the machine and verifying all connections as well as trying a PRAM reset? Press the PRAM reset keys on the keyboard for 60 seconds. If you don't hear the chime at least once, something else is wrong.
     
  8. n0cus thread starter macrumors 6502

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    #8
    I guess something else is wrong.
     
  9. 556fmjoe macrumors 65816

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  10. Altemose macrumors G3

    Altemose

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    #10
    I am getting smarter!

    Does the display flicker at all?
     
  11. n0cus thread starter macrumors 6502

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    Jul 16, 2012
    #11
    Yeah, the green light glows.

    ----------

    Unfortunately, no
     
  12. n0cus, Sep 20, 2014
    Last edited: Sep 20, 2014

    n0cus thread starter macrumors 6502

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    #12
    I am going to count my losses and just sell it not eBay. I didn't know about the vreg issues with the iBook G4. I am thinking about buying a PowerBook G4 to replace it. Does anyone know of such a major flaw with the PowerBooks?
     
  13. Intell macrumors P6

    Intell

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    #13
    The 12" Powerbooks are rather stable. They're biggest problem is burning out the GPU due to covering the side air intake vent. You may want to avoid the 867Mhz model if possible. It runs hotter than the 1Ghz+ models, doesn't have CoreImage, and only has mini-VGA out.
     
  14. n0cus thread starter macrumors 6502

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    #14
    I am looking at a 1.25MHz 15in. Do you know of any flaws? Thanks for all the help Intell.
     
  15. Intell macrumors P6

    Intell

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    #15
    The most notable flaw is a failing or dead memory slot.
     
  16. n0cus thread starter macrumors 6502

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    #16
    Worse case, I am stuck with 1GB of RAM, right? Is it both RAM slots or just one?
     
  17. Intell macrumors P6

    Intell

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  18. n0cus thread starter macrumors 6502

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    #18
    Thanks Intell, I guess I know what computer I am hunting for now.
     
  19. n0cus thread starter macrumors 6502

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    #19
    I have one more question that I don't think requires a new thread. Will 800 MHz PC2-6400S RAM on PowerBooks? I heard that higher specced RAM works on lower specced machine, but I am not sure.
     
  20. Intell macrumors P6

    Intell

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    #20
    Possibly, but only in the last model Powerbook with the high resolution screen and dual layer DVD drive as that is the only model that will take DDR2 memory.
     
  21. n0cus thread starter macrumors 6502

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    #21
    Okay, thanks Intell.
     
  22. melb00m macrumors regular

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    Feb 4, 2011
    #22
    I'm about to buy a 15" PowerBook G4 that is in almost perfect condition, except it has that issue. Can I use a 2 GB DDR2 memory module on this one slot, or is 1 GByte the maximum for each memory bank and I'll be stuck with that?

    Does anyone know of a good site or video that explains how to fix this soldering problem?
     
  23. MacCubed macrumors 68000

    MacCubed

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    Florida
    #23
    Only the last model PowerBook G4(the one from late '05, 1.67GHz Hi-Res Screen, with the Double-Layer SuperDrive) use DDR2 RAM, this issue has been brought up before, a user reported that he used a single 2GB stick in his DLSD PowerBook. I have 2x 1GB sticks in mine, and logic boards for PowerBooks are running relatively cheap nowdays.
     
  24. melb00m macrumors regular

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    Feb 4, 2011
    #24
    Thank you. It's the 1.5 GHz A1106 with 15" display. So I'll have to stick to 333 MHz DDR.

    It's from the original owner, though -- all parts original, and box included. Battery and casing are in almost perfect condition, as the owners almost solely used it plugged in on their desk.

    I'll see how it works with 1 GB and then decide on the logic board replacement. It's more or less a collectors item anyway, as I think this is the best looking notebook ever created.
     

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