PowerMac G5 Dual Kernal Panic Issues

[RLWeese]

Hi Everyone!
New to the forums and apologize if this has been brought up before.
I am having a rather odd problem that showed up unexpectedly today. It had been running fine.
I have a PowerMac G5 2.0 Ghz Dual processor unit, 3 Gb Ram, 200 Gb HD.
Today, I received a Kernal Panic when I double clicked my Mac HD icon on the desktop. I restarted and it worked fine for about 5 minutes then KP'd again when I launched disc utility. Restarted again and same thing when I tried to open system preferences. Doesn't seem to be any rhyme or reason to it. I have reset the PRAM, opened the case and made sure the RAM was tight, even swapped the HD. I booted from my Leopard disc and got the dreaded KP twice while attempting to install on the new HD. Any ideas would be great as I'm a little perplexed by this. Here is a copy of the KP Report. Thanks for any input!

Interval Since Last Panic Report: 3858 sec
Panics Since Last Report: 1
Anonymous UUID: 6132B108-C5E5-4868-BF6E-C927B08E935D

Mon Jan 24 16:46:45 2011


Unresolved kernel trap(cpu 1): 0x300 - Data access DAR=0x0000000000000024 PC=0x00000000000E2814
Latest crash info for cpu 1:
Exception state (sv=0x60165280)
PC=0x000E2814; MSR=0x00009030; DAR=0x00000024; DSISR=0x40000000; LR=0x000E2824; R1=0x5495B8B0; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x002461A8 0x000E2AA4 0x000E2C68 0x002528E0 0x0010A2D4 0x000EB3C8
0x000EC160 0x000FAB70 0x003100AC 0x000B4448 0x00000000
backtrace terminated - frame not mapped or invalid: 0xF01013C0

Proceeding back via exception chain:
Exception state (sv=0x60165280)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x714b7780)
PC=0x93800980; MSR=0x0200F030; DAR=0xE6C558FC; DSISR=0x40000000; LR=0x96BE8950; R1=0xF01013C0; XCP=0x00000030 (0xC00 - System call)

BSD process name corresponding to current thread: Mail

Mac OS version:
9L31a

Kernel version:
Darwin Kernel Version 9.8.0: Wed Jul 15 16:57:01 PDT 2009; root:xnu-1228.15.4~1/RELEASE_PPC
System model name: PowerMac7,2

System uptime in nanoseconds: 5032636803398
unloaded kexts:
com.apple.driver.Apple02DBDMAAudio 2.5.8f1 - last unloaded 6985846455
loaded kexts:
com.apple.filesystems.msdosfs 1.5.5 - last loaded 2996252993
com.apple.filesystems.autofs 2.0.2
com.apple.driver.AppleTopazAudio 2.5.8f1
com.apple.driver.AppleTAS3004Audio 2.5.8f1
com.apple.driver.AudioIPCDriver 1.0.6
com.apple.driver.AppleFCU 1.3.2b0
com.apple.driver.AppleFan 1.0.10f1
com.apple.driver.AppleK2Fan 1.0.10f1
com.apple.driver.AppleTexasAudio 2.5.8f1
com.apple.driver.AppleTexas2Audio 2.5.8f1
com.apple.driver.AppleDACAAudio 2.5.8f1
com.apple.driver.AppleHWSensor 1.9d0
com.apple.driver.AppleADT746x 1.0.10f1
com.apple.driver.AppleSCCSerial 1.3.2
com.apple.driver.AppleCPUVoltage 1.5.2d0
com.apple.iokit.IOFireWireIP 1.7.7
com.apple.ATIRadeon9700 5.4.8
com.apple.driver.AppleVSP 2.2.2
com.apple.driver.AppleThermal 1.0.1f2
com.apple.driver.AppleK2Driver 1.7.2f1
com.apple.driver.AppleSlewClock 1.5.2d0
com.apple.driver.AppleHWClock 1.5.2d0
com.apple.driver.AppleADM103x 1.0.10f1
com.apple.driver.PowerMac7_2_PlatformPlugin 3.4.0d0
com.apple.driver.InternalModemSupport 2.4.0
com.apple.driver.AppleMaxim6690 1.9d0
com.apple.driver.AppleI2S 1.0.1f1
com.apple.driver.AppleAD741x 1.9d0
com.apple.driver.AppleLM7x 1.9d0
com.apple.driver.MaxTranserSizeOverrideDriver 2.0.9
com.apple.driver.iTunesPhoneDriver 1.0
com.apple.iokit.IOUSBMassStorageClass 2.0.8
com.apple.driver.AppleFileSystemDriver 1.1.0
com.apple.driver.AppleHIDKeyboard 1.0.9b4
com.apple.driver.AppleUSBMergeNub 3.5.2
com.apple.driver.LSI_FW_500 2.0.9
com.apple.driver.Oxford_Semi 2.0.9
com.apple.driver.initioFWBridge 2.0.9
com.apple.driver.IOFireWireSerialBusProtocolSansPhysicalUnit 2.0.9
com.apple.driver.StorageLynx 2.0.9
com.apple.driver.PioneerSuperDrive 2.0.9
com.apple.iokit.SCSITaskUserClient 2.1.1
com.apple.driver.XsanFilter 2.7.91
com.apple.iokit.IOATABlockStorage 2.0.6
com.apple.driver.AppleUSBHub 3.4.9
com.apple.iokit.IOATAPIProtocolTransport 1.5.3
com.apple.iokit.IOUSBUserClient 3.5.2
com.apple.driver.ApplePMU 2.5.6d2
com.apple.driver.AppleK2SATA 1.0.4f2
com.apple.driver.AppleGPIO 1.3.0d0
com.apple.driver.AppleVIA 1.5.1d1
com.apple.driver.MacIOGPIO 1.3.0d0
com.apple.driver.AppleCPUThermo 2.0.0a0
com.apple.driver.AppleMPIC

 

[gsahli]

You should run Apple Hardware Test - I think it is on your original Install DVD #2 - Additional Software and A.H.T.

 

[RLWeese]

Thank you for the advice.
All test passed. I even went it to single user mode and tested the RAM. No problems reported. I have started removing devices from the machine to see if any of those may be the culprit. The KP's have reduced in frequency but are still happening. I suspect I may have a bad RAM module even though every test I've thrown at it has passed. I think I'm going to start removing a pair of RAM modules every time I get a KP. I'll get to the bottom of this! LOL It's slowly driving me insane!

 

[chscag]

Swap out the modules to make sure. However, that many KPs while doing just about "anything" could be indicative of a malfunctioning logic board. The Powermac Dual G5 machines run fairly hot as it is.

Let us know.

 

[RLWeese]

Well, I've got my fingers crossed. I bought 6 Gigs of RAM today and installed it in my Mac. So far so good. There have been no KP's since installing the new RAM this afternoon. Time will tell but I've got a pretty good feeling it was a faulty RAM module.
Thanks for your input!