Mac Pro Early 2009 Freezes Once

Question

Level 1

8 points

Mac Pro Early 2009 Freezes Once

I have an Early 2009 Mac Pro with a strange situation. When I boot it after it having been off for while it will completely freeze after a few minutes. When I then hard reboot (power off and power on again) it runs fine with no freezing at all. Only happens with that first switch-on after a few hours off. Any ideas what's going on?

Specs:

Hardware Overview:

Model Name: Mac Pro

Model Identifier: MacPro5,1

Processor Name: Quad-Core Intel Xeon

Processor Speed: 2,26 GHz

Number of Processors: 2

Total Number of Cores: 8

L2 Cache (per Core): 256 KB

L3 Cache (per Processor): 8 MB

Hyper-Threading Technology: Enabled

Memory: 24 GB

System Firmware Version: 144.0.0.0.0

OS Loader Version: 540.120.3~37

SMC Version (system): 1.39f5

SMC Version (processor tray): 1.39f5

Hardware UUID: EF4B8979-9855-5892-92E8-4822ADDF26F1

Provisioning UDID: EF4B8979-9855-5892-92E8-4822ADDF26F1

[Edited by Moderator]

Mac Pro, macOS 12.7

Posted on Dec 20, 2024 4:12 AM

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Answer 1

Dec 30, 2024 8:05 AM in response to quinnlubbe

<< "macOSPanicString":"Machine-check >>

that report looks exactly like the machine-check kernel panic caused by bad RAM memory.

User Tip: Mac Pro and Error Correcting Co… - Apple Community

readers are eager to answer follow-on questions if you need more help.

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Answer 2

Dec 21, 2024 6:04 AM in response to quinnlubbe

Kernel Panic Reports are stored in the Folder at:

/Library/Logs/DiagnosticReports

If you copy and paste that string into:

Finder > Go menu > Go to Folder

it will take you to the Folder where those reports are stored.

Kernel panic reports are named with Date&Time and start or end in ‘panic’

If you find one, please post as much as you can here, by using the “additional text” Icon in the reply footer (looks like a paper with writing). (Once the report devolves into incessant software-names or incessant Base-64 dumps with lots of AAAAAA lines, you are done.)

Please don’t post more about 20 lines of any other types of reports — they are interminable, and any information useful for this purpose is on the first screenful.

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Answer 3

quinnlubbe Author

Level 1

8 points

Dec 30, 2024 3:58 AM in response to Grant Bennet-Alder

Panic Report

Here's what I could find in that folder. Is this what you were looking for?

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Answer 4

Dec 20, 2024 7:34 AM in response to quinnlubbe

do you get a kernel panic report on the screen?

if so, post the report.

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Answer 5

quinnlubbe Author

Level 1

8 points

Dec 21, 2024 12:26 AM in response to Grant Bennet-Alder

Unfortunately, when I hard restart, no report is given.

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Answer 6

quinnlubbe Author

Level 1

8 points

Dec 30, 2024 9:15 AM in response to Grant Bennet-Alder

Thanks so much for your assistance. I suspected it was bad RAM and had started booting up with one module at a time to see if I could eliminate the faulty module. This confirms my suspicions.

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