Run diagnostics on mac lion

How to run Apple Hardware Test on a Mac from Early 2013 and older

Apple Hardware Test Download Links. Branch: master New pull request. Find File. Download ZIP.

Old MacBook Pro recovery problem

Sign in Sign up. Launching GitHub Desktop Go back. Launching Xcode Launching Visual Studio Latest commit 4c46d6b Dec 18, You can use the following terminal commands to determine the model and board ID of your computer: sysctl hw. You signed in with another tab or window.

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Reload to refresh your session. If Apple Diagnostics or Apple Hardware Test isolate a hardware issue with your computer, you will get an error code. You will need this code to learn more about what might be wrong with your computer and how to troubleshoot the issue. In addition, these codes are required if you contact Apple or take your Mac to an Apple Authorized Service Provider or Apple Retail Store to determine which service and support options are available. Apple Diagnostics or Apple Hardware Test mode?

How to start up your Mac in Apple Diagnostics or Apple Hardware Test mode If you have a Mac notebook, double-check that the computer is connected to the power adapter to prevent it from shutting down during testing. Page content loaded.

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Dec 18, PM in response to kin sing stephen In response to kin sing stephen. I may of also been install with that older version of OS X and removed when you upgrade to Snow Leopard. So dig out those original system disc and insert one and hold down the D key. If that one doesn't get you the AHT try the other. Dec 18, PM.

Old MacBook Pro recovery problem | Tom's Guide Forum

After the chime press and hold down the "D" key until the diagnostic screen appears. Run the extended tests for a minimum of two or three hours.

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If any error messages appear note them down as you will need to report them to the service tech when you take the computer in for repair. Apple Hardware Test- iMac Mid and later models.

Fix Mac hardware problems after running Apple Diagnostics

Thank you very much for the information. I have tried to initiate test by pressing the 'D' but it does not work for me. Is there any other way to do that. Is it because I installed snow leapord so I lost this option? Sorry but you have not siad yes or no to that. Did you try any of the suggestions in the other links, for example, the second and third links? I was doing exactly the same thing with my original DVD.

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But none of them work. That's why I am wondering if by installing snow leapord make me lose hardware diagnostic test or I have to do the other way in order to bring the test up instead of holding down the 'D' key. If you repartitioned the drive, then you would have wiped the track with the AHT.

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