Powermac G4 kernel panic

[bobv]

Hi there everybody!

While I patiently wait for the next update to the Macbook Pro & Mac Pro lines I decided I would beef up an old G4 tower that I have in order to hold me over. I have no pressing projects coming down the pike so I figured all would be fine.

It is a G4 Powermac Dual 1.25 with 2GB Ram. There are three internal Hard drives, each 500GB.

I've come across a number of odd problems and I'd like to get your opinion.

The first thing that went wrong was the DVD drive, it wouldn't read anything. So I replaced it. I also had purchased 4 500GB Hard Drives (2 Seagate 2 WD) that I installed internally.

The first installation of OS X got corrupted somehow. I believed it to be the hard drive, but I am not sure. I was in the middle of trying to import my itunes library from another computer and it kept loosing files and freezing up on me. Eventually the system would not even boot. I pulled out the HD and installed os x (10.5) on another one, tried it again.

All seemed well. I ran some tests on the questionable drive and it appeared to be ok. I then set it up to run as the 'time machine' drive and for about a day it appeared to be working fine.

However I have had two kernel panics (both happened shortly after the computer was awakened from sleep mode i believe) Both log files are identical:

Tue Jul 15 12:24:59 2008


Unresolved kernel trap(cpu 1): 0x300 - Data access DAR=0x0000000000000004 PC=0x00000000008886F8
Latest crash info for cpu 1:
Exception state (sv=0x3b6f8000)
PC=0x008886F8; MSR=0x00009030; DAR=0x00000004; DSISR=0x42000000; LR=0x00888694; R1=0x41EDFD80; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x00888694 0x008889B4 0x00888AC8 0x000B05D4
Kernel loadable modules in backtrace (with dependencies):
com.apple.iokit.IOATABlockStorage(2.0.3)@0x87b000->0x88dfff
dependency: com.apple.iokit.IOATAFamily(1.7.3f1)@0x830000
dependency: com.apple.iokit.IOStorageFamily(1.5.2)@0x69d000
Proceeding back via exception chain:
Exception state (sv=0x3b6f8000)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x3b0d9780)
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:
9E17

Kernel version:
Darwin Kernel Version 9.4.0: Mon Jun 9 19:36:17 PDT 2008; root:xnu-1228.5.20~1/RELEASE_PPC
System model name: PowerMac3,6
panic(cpu 1 caller 0xFFFF0003): 0x300 - Data access
Latest stack backtrace for cpu 1:
Backtrace:
0x0009B498 0x0009BE3C 0x00029DD8 0x000AF210 0x000B2A78
Proceeding back via exception chain:
Exception state (sv=0x3b6f8000)
PC=0x008886F8; MSR=0x00009030; DAR=0x00000004; DSISR=0x42000000; LR=0x00888694; R1=0x41EDFD80; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x00888694 0x008889B4 0x00888AC8 0x000B05D4
Kernel loadable modules in backtrace (with dependencies):
com.apple.iokit.IOATABlockStorage(2.0.3)@0x87b000->0x88dfff
dependency: com.apple.iokit.IOATAFamily(1.7.3f1)@0x830000
dependency: com.apple.iokit.IOStorageFamily(1.5.2)@0x69d000
Exception state (sv=0x3b0d9780)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)

BSD process name corresponding to current thread: kernel_task

I have tried to run disk utility on my OS installed drive and it seems to stall out. I then tried to boot from cd to use disk utility but my machine stalls out and does not enter the startup mode. It gets to the point were you see the 10.5 background but no mouse pointer or anything else typical of a boot from CD.

Another thing. This may just be something with the older mac LCD screen, but it seems to take quite a bit longer than I remember for it to turn on. 15-20 seconds after the chime.

I'm going to try and get it to boot from the CD again. Any help is much appreciated. THX!

-Bob