Question about Apple iBook G4 Mac Notebook

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Ibook g4 freezes and airport problem

i hav an ibook g4 bought in 2006. everythin was fine but eventually my ibook started freezing and asks me to shut down the system by pressing on the power button. while booting at times it says da same as above and now my airport is not working whenever i activate airport it freezes and says shut down the system by pressing on the power button.
please suggest me wat to do

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  • delgiudice Feb 24, 2009

    I have the same problem. My iBook freezing also. I call my friend on phone, who has iBook, and he has the same problem... Now, I switch off my airport and it isn't freezing.

    This was the error report:

    panic(cpu 0 caller 0x000A8C00): Uncorrectable machine check: pc = 00000000006E3038, msr = 0000000000149030, dsisr = 40000000, dar = 0000000017628040
      AsyncSrc = 0000000000000000, CoreFIR = 0000000000000000
         L2FIR = 0000000000000000,  BusFir = 0000000000000000

    Latest stack backtrace for cpu 0:
             0x000954F8 0x00095A10 0x00026898 0x000A8C00 0x000A7E90 0x000ABB80 
    Proceeding back via exception chain:
       Exception state (sv=0x2124A780)
          PC=0x006E3038; MSR=0x00149030; DAR=0x17628040; DSISR=0x40000000; LR=0x006E2C10; R1=0x0D0D3C70; XCP=0x00000008 (0x200 - Machine check)
    0x00003CE7 0x0070EEC8 0x0070A828 0x0071F094 0x002D1B8C 0x002D0A54 
          Kernel loadable modules in backtrace (with dependencies):
       Exception state (sv=0x24B26780)
          PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)

    Kernel version:
    Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC
    Model: PowerBook6,7, BootROM 4.9.3f0, 1 processors, PowerPC G4 (1.2), 1.33 GHz, 512 MB
    Graphics: ATI Mobility Radeon 9550, ATY,M12, AGP, 32 MB
    Memory Module: DIMM0/BUILT-IN, 512 MB, built-in, built-in
    AirPort: AirPort Extreme, 405.1 (
    Modem: Jump, V.92, Version 1.0
    Bluetooth: Version 1.9.5f4, 2 service, 1 devices, 1 incoming serial ports
    Network Service: AirPort, AirPort, en1
    PCI Card: pci106b,4318, sppci_othernetwork, SLOT-B
    Parallel ATA Device: MATSHITACD-RW  CW-8124
    Parallel ATA Device: TOSHIBA MK4025GAS, 37.26 GB
    USB Device: Bluetooth USB Host Controller, Apple, Inc., Up to 12 Mb/sec, 500 mA
    USB Device: Apple Internal Trackpad, Apple Computer, Up to 12 Mb/sec, 500 mA

  • capnet Mar 18, 2009

    Turns out there is quite a bit of this going around.  I'm dealing with it on a 1.42GHz iBook G4 model.  Most discussions are pointing to a failure in the connection between the airport module and the logic board.  Apparently it can become loose and cause the instabilities in the kernel driver.  Try turning off the airport and see if it resolves the issue.  That solution works for me, but I'd like my airport back so I'm working on a solution.

  • lejoee Apr 16, 2009

    yeah my friend has the same problem too freezing..... i even reinstalled tiger fresh still had problem..tried a different hard drive and still same problem....Thought it was heat issue but it works great without airport heat issue....went in and removed the airport extreme card and problem solved..its not worth replacing the the logic board..just get the usb stick that supports 11n wireless and rock on till the bad boy the way ethernet works fine doesnt freeze either...Shut the airport card off..or better yet remove it


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Have you gone into airport utility?
are you using an airport extreme? if so, reset it.
then delete the current wireless network, and try setting up a new one in airport utility.

Posted on Feb 18, 2009

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