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  1. #1
    PowerBook G4 1.25 ram upgrade problems

    Member Since
    Apr 11, 2008
    Posts
    2
    Unhappy PowerBook G4 1.25 ram upgrade problems
    Hi,
    So i'm new here and i tried searching for my problem but i can't seem to find it.
    i apologize if i missed a huge thread about it.

    I bought a new macbook and gave my powerbook g4 to my mother.
    It had the 512mb ram original ram and i upgraded to 1gig of crucial ram.

    Since then the laptop will work for a while then either it will freeze, or an error that just says restart your computer will come up.

    when working on it the other day upon startup i got this error.

    System failure: cpu=0 code 00000008 (unaligned stack)
    Latest crash info for cpu 0
    Exception state (sv=0x00001030)
    PC = 0x000ABC08 ; MSR=0x00001030; DAR=0x55555725; DSISR=0x42000000; LR=0x000ABACC; R1=0xFC14FB41; XCP=0x00000098 (system failure

    Backtrace:
    Backtrace terminated unaligned frame address 0xFC14FB41
    Proceeding back via exception chain
    Exception state (sv=0x3B4DE500)
    PC = 0x00002EF4 ; MSR=0x02003000; DAR=0x55555725; DSISR=0x42000000; LR=0x000029AC; R1=0xFC14FC21; XCP=0x0000000C (0x300 Data access)

    Backtrace:
    Backtrace terminated unaligned frame address 0xFC14FC21
    Kernel version
    Darwin kernel version 8.11.0: Wed Oct 10 18:26:0 PDT 2007;
    Root:xnu-792.24.17 ~ 1/Release _PPC
    Memory access exception (1,0,0)
    Ethernet MAC address:00:00:00:00:00:00
    ip address: 0.0.0.0
    waiting for remote debugger connection

    It works sometimes then fails after its been on after a while.

    If i put the old ram it works fine.

    here is the ram i installed
    http://www.newegg.com/Product/Produc...82E16820145502

    i have read a lot about lower socket failure but it still reads as having 1 gig of ram so it reading both slots..

    Specs
    Powerbook G4 1.25ghz
    originally 512rm
    running Tiger

    any ideas?

    Thanks from my mother
    and for the sake of phone bill cause she keeps calling me with questions!

    thanks mac forums!
    kelly

  2. #2
    PowerBook G4 1.25 ram upgrade problems
    Soulwar's Avatar
    Member Since
    Jan 27, 2008
    Location
    Estero, FL
    Posts
    1,515
    Specs:
    iMac 17" 1Ghz G4  iPhone 3G  10.5.5
    You're having a Kernel Panic, which seems to be the new (bad) ram that's causing it, especially since the old ram works. These are the specs. You could always upgrade to 2GB.
    I would return it for a new one. Give them a call.
    When all else fails, try everything!
    The Rep System and you.
    Life's a joke...If you're not laughing, then you didn't get it.

    June 2008


  3. #3
    PowerBook G4 1.25 ram upgrade problems

    Member Since
    Apr 11, 2008
    Posts
    2
    2nd round of ram
    well i bought one brand of ram and it didn't work, same problem, then went for the crucial ram as i've bought it several times before and didn't have problems.

    is there only certain brands that work better with the powerbook g4?

  4. #4
    PowerBook G4 1.25 ram upgrade problems
    Soulwar's Avatar
    Member Since
    Jan 27, 2008
    Location
    Estero, FL
    Posts
    1,515
    Specs:
    iMac 17" 1Ghz G4  iPhone 3G  10.5.5
    Not that I know of. But remember, you get what you pay for. Crucial has a pretty good rep, so it just may be a bad ram module. It's happened to me before. (new, but bad)
    Have you tried changing the ram around? Put the "good" one in the slot you think is bad? (by itself) Then try the new in the other slot. If everything works ok until you add the new ram, I'd say you found your problem.

    You could also try the Apple Hardware test. Another link for it, if you need the test.
    You'd need to run the extended ram test though. The quick test may not catch it right away.
    When all else fails, try everything!
    The Rep System and you.
    Life's a joke...If you're not laughing, then you didn't get it.

    June 2008


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