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skd
Jan 27, 2008, 01:54 PM
my wife has a G4 iBook 1.33 GHz power pc, 1.5 GB DDR SDRAM, L2 cache 133 mHz, with Mac OSX - leopard -
several times a day the following prompt appears -
"You need to restart your computer. Hold down the power button for several seconds or press the restart button"
what's going on? & what can be done to fix it?
thanks



Killyp
Jan 27, 2008, 02:04 PM
What you're talking about is referred to as a 'Kernel Panic'. They can be caused by any number of things, ranging from Software issues to Hardware issues such as faulty RAM or a failing Hard Drive (quite common in laptops).

Insert your OS X install disk which came with the laptop, shut the laptop down and then start it back up, pressing and holding D almost straight after the power button. It will spin up the CD and go into Apple Hardware Test. Run a test and if it throws up any issues, then report back.

If it shows no errors, then it's almost certainly a software related issue. If so, it may be something connected to the computer which is causing software conflicts, anything connected via USB or FireWire could be the culprit. Try disconnecting any hardware and see if that seems to improve things.

If this doesn't seem to help, then back up the hard drive or any documents she'd like to keep and re-install OS X.

[b]If it's only just started doing it, and coincides with installing Leopard, then it's almost CERTAINLY a software issue and therefore you should re-install Leopard from a CLEAN install.[/p]

scaredpoet
Jan 27, 2008, 03:09 PM
Here's some more info about Kernel Panics:

http://docs.info.apple.com/article.html?artnum=106227

We might be able to help you a bit more if you post your panic log. The log is a recording of what was going on at the time the iBook panicked, including what process started the issue. You can find it in Macintosh HD -> Library -> Logs.

skd
Jan 27, 2008, 05:27 PM
thanks......i just got back to the house and will to what was recommended and report back.

skd
Jan 27, 2008, 06:44 PM
I ran the hardware test and everything passed -
I'll now reinstall the OS.....

Reflow
Jan 27, 2008, 07:46 PM
Have you tried reseting the pram or the pmu

http://docs.info.apple.com/article.html?artnum=2238

skd
Jan 27, 2008, 07:54 PM
i'll try that now...
thnx

skd
Jan 27, 2008, 10:44 PM
i've reseted the pram and so so good..........
can someone explain to me what it means to reset the pram?
thnx

skd
Jan 27, 2008, 11:00 PM
just got the kernal panic.........
I think I need to do a clean install.....

skd
Jan 27, 2008, 11:18 PM
here's the log report


Sun Jan 27 21:02:09 2008
panic(cpu 0 caller 0x000AE584): "Uncorrectable machine check: pc = 0000000000BB662C, msr = 0000000000149030, dsisr = 42000000, dar = 00000000004B7000\n" " AsyncSrc = 0000000000000000, CoreFIR = 0000000000000000\n" " L2FIR = 0000000000000000, BusFir = 0000000080000000\n"@/SourceCache/xnu/xnu-1228.0.2/osfmk/ppc/trap.c:975
Latest stack backtrace for cpu 0:
Backtrace:
0x0009AD18 0x0009B6BC 0x00029DC4 0x000AE584 0x000AE804 0x000B22F8
Proceeding back via exception chain:
Exception state (sv=0x42d4ec80)
PC=0x00BB662C; MSR=0x00149030; DAR=0x004B7000; DSISR=0x42000000; LR=0x00B4D188; R1=0x300D7D20; XCP=0x00000008 (0x200 - Machine check)
Backtrace:
0x00000000 0x00B4D188 0x00358D94 0x0003F8D8 0x000AFE54
Kernel loadable modules in backtrace (with dependencies):
com.apple.driver.AirPortBrcm43xx(305.25.82)@0xb45000->0xc71fff
dependency: com.apple.iokit.IO80211Family(200.7)@0xb22000
dependency: com.apple.iokit.IOPCIFamily(2.4)@0x888000
dependency: com.apple.iokit.IONetworkingFamily(1.6.0)@0xa55000
Exception state (sv=0x42d16780)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)

BSD process name corresponding to current thread: kernel_task

Mac OS version:
9B18

Kernel version:
Darwin Kernel Version 9.1.0: Wed Oct 31 17:48:21 PDT 2007; root:xnu-1228.0.2~1/RELEASE_PPC

skd
Jan 28, 2008, 07:26 PM
can anybody make sense of this log

Reflow
Jan 28, 2008, 08:55 PM
If you have added any RAM , take it out and see if the problem goes away. Or if you have the hardware test CD'S try them.

ceruleanheather
Apr 7, 2008, 07:15 PM
here's the log report


Sun Jan 27 21:02:09 2008
panic(cpu 0 caller 0x000AE584): "Uncorrectable machine check: pc = 0000000000BB662C, msr = 0000000000149030, dsisr = 42000000, dar = 00000000004B7000\n" " AsyncSrc = 0000000000000000, CoreFIR = 0000000000000000\n" " L2FIR = 0000000000000000, BusFir = 0000000080000000\n"@/SourceCache/xnu/xnu-1228.0.2/osfmk/ppc/trap.c:975
Latest stack backtrace for cpu 0:
Backtrace:
0x0009AD18 0x0009B6BC 0x00029DC4 0x000AE584 0x000AE804 0x000B22F8
Proceeding back via exception chain:
Exception state (sv=0x42d4ec80)
PC=0x00BB662C; MSR=0x00149030; DAR=0x004B7000; DSISR=0x42000000; LR=0x00B4D188; R1=0x300D7D20; XCP=0x00000008 (0x200 - Machine check)
Backtrace:
0x00000000 0x00B4D188 0x00358D94 0x0003F8D8 0x000AFE54
Kernel loadable modules in backtrace (with dependencies):
com.apple.driver.AirPortBrcm43xx(305.25.82)@0xb45000->0xc71fff
dependency: com.apple.iokit.IO80211Family(200.7)@0xb22000
dependency: com.apple.iokit.IOPCIFamily(2.4)@0x888000
dependency: com.apple.iokit.IONetworkingFamily(1.6.0)@0xa55000
Exception state (sv=0x42d16780)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)

BSD process name corresponding to current thread: kernel_task

Mac OS version:
9B18

Kernel version:
Darwin Kernel Version 9.1.0: Wed Oct 31 17:48:21 PDT 2007; root:xnu-1228.0.2~1/RELEASE_PPC


Was there ever a response in regards to this problem? I have the same problem and get the same message. Please help!! My iBook works intermittently. Sometimes for 2 days before the OS crashes or sometimes 5 mins or 45 mins.