Mac Goes into Panic Kernal Daily.

[Jgift93]

Recently I have been having some issues with a MAC G5 we have and it has been crashing daily. From looking at the crash log I think it has something to do with memory but would like a second opinion.

Unresolved kernel trap(cpu 1): 0x300 - Data access DAR=0x00000000548F9010 PC=0x00000000000D9258

Latest crash info for cpu 1:

  Exception state (sv=0x469E8780)

  PC=0x000D9258; MSR=0x00009030; DAR=0x548F9010; DSISR=0x40000000; LR=0x009201B4; R1=0x2C9331B0; XCP=0x0000000C (0x300 - Data access)

  Backtrace:

0x009201AC 0x00109608 0x000D6134 0x000FEB68 0x000DC030 0x000DEA44

  0x000DE2C0 0x00229FD4 0x000FC538 0x000F56D4 0x000F55D4 0x00265C8C 0x002ABDB8 0x000ABD30

  0x41414141

  backtrace terminated - frame not mapped or invalid: 0xBFFFF810



  Kernel loadable modules in backtrace (with dependencies):

  com.apple.BootCache(25.1)@0x91e000

Proceeding back via exception chain:

  Exception state (sv=0x469E8780)

  previously dumped as "Latest" state. skipping...

  Exception state (sv=0x469E6280)

  PC=0x90045E8C; MSR=0x0000D030; DAR=0x000070CC; DSISR=0x0A000000; LR=0x90088C34; R1=0xBFFFF810; XCP=0x00000030 (0xC00 - System call)



Kernel version:

Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPC

panic(cpu 1 caller 0xFFFF0003): 0x300 - Data access

Latest stack backtrace for cpu 1:

  Backtrace:

  0x000954F8 0x00095A10 0x00026898 0x000A8204 0x000ABB80

Proceeding back via exception chain:

  Exception state (sv=0x469E8780)

  PC=0x000D9258; MSR=0x00009030; DAR=0x548F9010; DSISR=0x40000000; LR=0x009201B4; R1=0x2C9331B0; XCP=0x0000000C (0x300 - Data access)

  Backtrace:

0x009201AC 0x00109608 0x000D6134 0x000FEB68 0x000DC030 0x000DEA44

  0x000DE2C0 0x00229FD4 0x000FC538 0x000F56D4 0x000F55D4 0x00265C8C 0x002ABDB8 0x000ABD30

  0x41414141

  backtrace terminated - frame not mapped or invalid: 0xBFFFF810



  Kernel loadable modules in backtrace (with dependencies):

  com.apple.BootCache(25.1)@0x91e000

  Exception state (sv=0x469E6280)

  PC=0x90045E8C; MSR=0x0000D030; DAR=0x000070CC; DSISR=0x0A000000; LR=0x90088C34; R1=0xBFFFF810; XCP=0x00000030 (0xC00 - System call)



Kernel version:

Darwin Kernel Version 8.11.0: Wed Oct 10 18:26:00 PDT 2007; root:xnu-792.24.17~1/RELEASE_PPCModel: PowerMac11,2, BootROM 5.2.7f1, 2 processors, PowerPC G5 (1.1), 2 GHz, 2 GB

Graphics: NVIDIA GeForce 6600LE, GeForce 6600LE, PCI, 128 MB

Memory Module: DIMM2/J6900, 256 MB, DDR2 SDRAM, PC2-4200U-444

Memory Module: DIMM3/J7000, 256 MB, DDR2 SDRAM, PC2-4200U-444

Memory Module: DIMM4/J7100, 512 MB, DDR2 SDRAM, PC2-4200U-444

Memory Module: DIMM5/J7200, 512 MB, DDR2 SDRAM, PC2-4200U-444

Memory Module: DIMM6/J7300, 256 MB, DDR2 SDRAM, PC2-4200U-444

Memory Module: DIMM7/J7400, 256 MB, DDR2 SDRAM, PC2-4200U-444

Network Service: Built-in Ethernet 1, Ethernet, en0

Network Service: Built-in Ethernet 2, Ethernet, en1

PCI Card: GeForce 6600LE, Display, SLOT-1

PCI Card: bcom5714, network, GIGE

PCI Card: bcom5714, network, GIGE

Serial ATA Device: Maxtor 6L160M0, 152.67 GB

USB Device: Hub in Apple Pro Keyboard, Mitsumi Electric, Up to 12 Mb/sec, 500 mA

USB Device: Apple Optical USB Mouse, Mitsumi Electric, Up to 1.5 Mb/sec, 100 mA

USB Device: Apple Pro Keyboard, Mitsumi Electric, Up to 12 Mb/sec, 250 mA

USB Device: USB Multimedia Keyboard, Logitech, Up to 1.5 Mb/sec, 500 mA

FireWire Device: unknown_device, unknown_value, Up to 400 Mb/sec

 

[chown33]

Try Apple Hardware Test:
https://support.apple.com/en-us/HT201257

http://www.thexlab.com/faqs/aht.html

 

[thats all folks]

it often is memory. you can try pulling and re-seating all the DIMMs, if that doesn't work, pull half the DIMMs and run it that way. if you still have problems, replace the installed with the half you pulled and try again. basically, process of elimination. if no RAM change makes a difference, it's probably something deeper.

you should also be able to run Apple Hardware Test by holding the D key during startup.
https://support.apple.com/en-us/HT201257
you can do a RAM test there.

if you end up with a bad stick or two, I'd say buy a whole new set of RAM. 1.5GB ain't exactly a lot. that machine should take up to 16GB. get yourself 8 matching sticks of 1 or 2GB, PC2-4200 (DDR2-533) 184pin DIMMs of of eBay.

when messing with RAM make sure to install correctly.
https://support.apple.com/en-us/HT201689

looks like you are also still running the original hard drive in that. it takes SATA drives so a new drive or even an SSD will also be a performance boost (even st SATA I speeds).