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MacPro CPU issue


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Pete Bull

Pete Bull

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Configuration MacOSX 10.6.4

Host: MacPro 3.1 Ref. MA970 * / A "Early 2008"
Quad Core Intel Xeon 2.8 GHz (E5462) "Harpertown"
Number Processors: 2
CPU Level 2 cache = 6MB

Problems identified:
Possible start untill the gray Apple and the gear, and then frozen screen.
Mac cannot boot on Apple install DVD
Applejack control: most of the time, no problem, except sometimes CPU issue reported.
Sometimes (exceptionally) normal startup but once under Finder quick frozen screen.

What works:
Power: No problem
Battery: No problem
SCM: No problem
Permissions: No problem
Internal Drive: No problem
fsck: No problem
Apple Hardware Test: No problem (???!!)

What was tested:
Starting in safe mode: screen freezes before the PW window.

Several questions:

I think it is a failure on one of the 2 processors. Do you agree?

- Do you have any other tests to try?

- How to confirm this hypothesis?

- Is it possible to know if one of the 2 processors is down without removing it?

- Is it easy to remove them?

- Can this Mac temporarily work with only one of his 2 processors?

Must it be replaced by the same model of Xeon (upper model possible)?

- Are E5462 Xeon Apple frienfly?

Thanks to help me.





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