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How Can I Run Apple Hardware Test?

I'm having constant kernal panics and need to run AHT becuase I suspect it is hardware related.


I have an early 2009 MacPro4,1 model. I can't run AHT because:

1. I lost the original sofware DVDs

2. It is no longer on the hard drive after having upgraded the system multiple times.

3. I called Apple support to try and order the original system software and they told me they can't provide it and only have retail disks which don't have AHT.

4. I found a blog post that links to download AHT for various models, but MacPro4,1 isn't listed: http://rivenbyfive.blogspot.com/2012/01/download-and-run-apple-hardware-test.htm l


I'm not sure what to do at this point. Since I don't have my original disks it seems like Apple has made it impossible to run AHT on my upgraded system.


Any ideas?

Mac Pro, OS X Mountain Lion (10.8.2), Early 2009 Mac Pro

Posted on Oct 9, 2012 11:24 AM

Reply
23 replies

Oct 17, 2012 10:44 AM in response to tricksters

I ended up finding the Apple Service Diagnostics disks online for my system and ran that.


The test fails during Sensor tests:


Temp (TNOD) - (MacPro) IOH or (iMac or mac mini) MCP, Tdiode (test 1) - Sensor Reads Within Operating Range

- Check to ensure that sensor reads within operating range.

ERROR - Sensor is reading above the high limit

- TEST FAILED -

How Can I Run Apple Hardware Test?

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