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You are here: MacNN Forums > Hardware - Troubleshooting and Discussion > Mac Desktops > Is this KP because of bad RAM?

Is this KP because of bad RAM?
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NewOldbie
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Join Date: Mar 2001
Location: Salt Lake City, UT
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Jan 19, 2006, 11:45 AM
 
I've been having more than my share of KP since getting my Quad.

Here's a report. Comments from the gearheads? I did run Hardware test AND mtest (5 loops) yesterday, no errors reported. I have 4 GB of OCW's ECC RAM.


panic(cpu 0 caller 0x00C3524C): Uncorrectable parity error detected in rank 0 [DIMM0/J6700, DIMM1/J6800] (MEAR0=0x0E83082C MEAR1=0x04000000 MESR=0x80001A99)

Latest stack backtrace for cpu 0:
Backtrace:
0x00095718 0x00095C30 0x0002683C 0x00C3524C 0x00B86D70 0x00B86DA8 0x006ED048 0x002D0060
0x002CEF28 0x000A9894
Kernel loadable modules in backtrace (with dependencies):
com.apple.driver.AppleGPIO(1.1.9d0)@0xb84000
dependency: com.apple.driver.IOPlatformFunction(1.8.0d12)@0x64 e000
com.apple.driver.MacIOGPIO(1.1.9d0)@0x6eb000
com.apple.driver.AppleMacRISC4PE(1.8.5d0)@0xc2e000
dependency: com.apple.iokit.IOPCIFamily(1.7)@0x479000
dependency: com.apple.driver.IOPlatformFunction(1.8.0d12)@0x64 e000
Proceeding back via exception chain:
Exception state (sv=0x00F18C80)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)

Kernel version:
Darwin Kernel Version 8.4.0: Tue Jan 3 18:22:10 PST 2006; root:xnu-792.6.56.obj~1/RELEASE_PPC
Model: PowerMac11,2, BootROM 5.2.7f1, 4 processors, PowerPC G5 (1.1), 2.5 GHz, 4 GB
Graphics: NVIDIA Quadro FX 4500, Quadro FX 4500, PCI, 512 MB
Memory Module: DIMM0/J6700, 2 GB, DDR2 SDRAM ECC, PC2-4200E-444
Memory Module: DIMM1/J6800, 2 GB, DDR2 SDRAM ECC, PC2-4200E-444
AirPort: AirPort Extreme, 404.2 (3.90.34.0.p16)
Bluetooth: Version 1.7.0f18, 2 service, 1 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en2
PCI Card: Quadro FX 4500, Display, SLOT-1
PCI Card: bcom5714, network, GIGE
PCI Card: bcom5714, network, GIGE
Serial ATA Device: HDS724040KLSA80, 372.61 GB
Serial ATA Device: HDS724040KLSA80, 372.61 GB
Parallel ATA Device: HL-DT-ST DVD-RW GWA-4165B, 7.83 GB
USB Device: Bluetooth HCI, , Up to 12 Mb/sec, 500 mA
USB Device: Hub, , Up to 12 Mb/sec, 500 mA
USB Device: USB Monitor, LG Electronics Inc., Up to 1.5 Mb/sec, 500 mA
USB Device: Hub, , Up to 480 Mb/sec, 500 mA
USB Device: USB Device, , Up to 1.5 Mb/sec, 500 mA
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: Apple Cinema HD Display, Apple Computer, Inc., Up to 12 Mb/sec, 500 mA
USB Device: iPod, Apple, Up to 480 Mb/sec, 500 mA
FireWire Device: unknown_device, unknown_value, Up to 800 Mb/sec
FireWire Device: LaCie FW800 Disk drive LUN 0, LaCie Group SA, Up to 800 Mb/sec
FireWire Device: EyeTV 500, Elgato Systems, Up to 400 Mb/sec
FireWire Device: Target Disk Mode, AAPL, Up to 400 Mb/sec
FireWire Device: LaCie 1394 Disk drive LUN 0, LaCie Group SA, Up to 400 Mb/sec
FireWire Device: > LaCie d2 DVD-RW Firewire, LaCie Group SA, Up to 400 Mb/sec
FireWire Device: unknown_device, unknown_value, Up to 400 Mb/sec
FireWire Device: unknown_device, unknown_value, Up to 400 Mb/sec
If there were no God, it would be necessary to invent him.

Voltaire
     
RevEvs
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Join Date: Feb 2001
Location: Sitting in front of computer
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Jan 19, 2006, 11:47 AM
 
Originally Posted by NewOldbie
panic(cpu 0 caller 0x00C3524C): Uncorrectable parity error detected in rank 0 [DIMM0/J6700, DIMM1/J6800]
That sounds like RAM.

Easy answer - take out the ram one by one and see if it still happens
I free'd my mind... now it won't come back.
     
   
 
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