Powerbook not booting, Invalid memory access

Discussion in 'PowerPC Macs' started by LazyD, Jun 2, 2010.

  1. macrumors newbie

    #1
    Hello,

    Hoping someone might be able to help with this mac problem a friend of mine has. Personally I don't have a lot of experience with macs but I work with pc's so hopefully some of that should apply here. When you turn the mac on, a few seconds after the sound it plays I'm presented with this screen:


    Invalid memory access at

    &SRR0: ff848580 &SRR1: 00003030

    Apple Powerbook 6,5 4.8.7f1 BootROM built on 09/23/04 at 16:13:38

    Copyright 1994-2004 Apple Computer, Inc. All rights reserved.

    Welcome to open firmware, the system time and date is: 01:04:41 02/09/1904

    The battery capacity is: 88 percent

    To continue booting, type "mac-boot" and press return.

    To shut down, type "shut-down" and press return.

    ok
    0>_


    I've coloured the & symbols red because I couldn't make out if they were actually & symbols or % symbols.

    Googling the error comes up with nothing at all. If I type mac-boot the screen goes grey for a short while then the mac turns off, and strangely doesn't seem to want to turn on again for a while. Even removing the battery and putting it back in and then pressing the power button doesn't seem to get it powering on again, I have to leave it and forget about it for a bit, then pressing the power button gets it turning on.

    I'm guessing this is a hardware fault but not sure what. Obviously the data and time is wrong so perhaps the cmos battery is dead (don't even know if macs have a cmos system or battery to be honest but they must have something similar) but I wouldn't think that would prevent booting. I have the tools to open it and am perfectly comfortable doing that.

    Can anyone suggest anything?

    Thanks.
     
  2. macrumors P6

    DoFoT9

    #2
    welcome to macrumors.

    this page might help you ;) (haha).

    it will most likely be the RAM is damaged. using the OSX install disc that came with the computer you can test the hardware, as per this thread. give that a try - i am betting that the RAM is damaged.
     
  3. macrumors newbie

    #3
    Thanks for your reply. For some reason I'm not getting email notifications even though I've got them on, hmm, happens in quite a few forums to me.

    I've seen your first link somewhere else before, not much help...

    Yeah I'll try the ram test, can I download an image and burn it with a mem test on it if I can't get my hands on the osx disk?
     

Share This Page