I can't be the only person out there with a Quad 2.5 having this problem (or maybe I should go buy a lottery ticket?)
Running 10.4.4, Quad 2.5, 30" display w/ NVIDIA Quadro FX 4500. This machine runs solid on Apple's 512MB DIMMs using virtual memory.
I am on my 3rd set of 2GB PC4200 ECC DIMMs (4GB total) from OWC. When I use their memory, I get Kernel panics or complete freezes. I've had 3 KPs in the last 50 minutes after installing the latest set of memory that OWC tested before they shipped it out.
Looks like I'm going to be biting it and going with Crucial. $600 for memory that others are charging $2000 did seem too good to be true.
Anybody got any ideas?
For the record, this is not the first time I bought memory from OWC and they have always been very good. They have shipped replacement DIMMs to me without hesitation with this new machine.
The error code is:
panic(cpu 0 caller 0x00C3524C): Uncorrectable parity error detected in rank 0 [DIMM0/J6700, DIMM1/J6800] (MEAR0=0x03330A9C MEAR1=0x04000000 MESR=0x800017C3)
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, 4.33 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
FireWire Device: TrayDock, WiebeTECH, 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: 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
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