HT201257: Using Apple Hardware Test

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ask4nitin
Level 1 (0 points)

Q: I have a slow boot up, so I wanted to run Apple Hardware Test. AHT never starts

I have a slow boot up, so I wanted to run Apple Hardware Test.

 

AHT never starts based on http://support.apple.com/kb/HT1509 but AHT does not come up. Tried it 20 times, no success. I have iMac 2011 w/ Lion. What should I do.

iMac, Mac OS X (10.7.3)

Posted on Mar 1, 2012 7:08 PM

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ask4nitin

Q: I have a slow boot up, so I wanted to run Apple Hardware Test. AHT never starts

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  • by rkaufmann87,

    rkaufmann87 rkaufmann87 Mar 1, 2012 7:34 PM in response to ask4nitin
    Level 9 (58,476 points)
    Photos for Mac
    Mar 1, 2012 7:34 PM in response to ask4nitin

    If you cannot get AHT to run there isn't much we can do here except recommend taking it to an Apple Store or AASP. Ask them to show you how to run AHT and they should be able to help you out.

  • by TeenTitan,

    TeenTitan TeenTitan Mar 1, 2012 7:35 PM in response to ask4nitin
    Level 4 (2,524 points)
    Mac OS X
    Mar 1, 2012 7:35 PM in response to ask4nitin

    DId your computer ship with disks? If so, did you try using the disk to boot to diagnostics? some computers it's disk one, other disk two.

    When you say your computter is slow to boot, how long dose it take to boot?

    Have you checked the hard drive using disk utility? Dose the disk verify without any errors?

  • by ask4nitin,

    ask4nitin ask4nitin Mar 3, 2012 11:18 PM in response to TeenTitan
    Level 1 (0 points)
    Mar 3, 2012 11:18 PM in response to TeenTitan

    Hi Titan,

     

    My system didn came with the disk. I have used disk utility to repair the disk, because it showed a boot sector problem during disk verification process. I started disk utility using Cmd+R at startup. The problem was fixed. Not the disk verifies without error.

     

    However, the initial gery screen at startup still take more than two minutes after with the apple icon appears.

     

    Thanks.