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apple hardware test 10.7.4

4087 Views 8 Replies Latest reply: Sep 18, 2013 9:54 PM by Rajapintaja RSS
t_key Calculating status...
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May 15, 2012 12:58 PM

how can i run the apple hardware test with 10.7.4 lion bought in the app store. I don't have install discs.

iMac (27-inch Late 2009), Mac OS X (10.7.4)
  • RRFS Level 5 Level 5 (4,425 points)
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    May 15, 2012 1:38 PM (in response to t_key)

    It should be installed. Hold down the "D" key after hearing the startup chime while powering up. If it isn't there hold the "Option + D" after the startup chime.

  • baltwo Level 9 Level 9 (59,180 points)
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    May 15, 2012 11:48 PM (in response to t_key)
    27" i7 iMac 10.6.8, Mac OS X (10.7.4), G4 450 MP w/Leopard, 9.2.2
  • X423424X Level 6 Level 6 (14,190 points)
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    May 16, 2012 12:11 AM (in response to t_key)

    Are you pushing the keys immediately after you hear the boot chime?  That's the time to push them.

  • John Galt Level 7 Level 7 (33,110 points)
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    May 16, 2012 12:16 AM (in response to t_key)

    Are you using a Bluetooth keyboard? Both the disk based and Internet versions of AHT work with the BT keyboard, but the keys must be pressed at the right time as X423424X wrote.

  • baltwo Level 9 Level 9 (59,180 points)
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    May 16, 2012 10:20 AM (in response to t_key)

    thumbsup.gif Just one shortcoming from using wireless stuff.

    27" i7 iMac 10.6.8, Mac OS X (10.7.4), G4 450 MP w/Leopard, 9.2.2
  • Rajapintaja Level 1 Level 1 (0 points)
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    Sep 18, 2013 9:54 PM (in response to t_key)

    By the way if you have a Mac that was using 10.6 ,but they upgraded it to 10.7   like my MacBook pro was orininally a 10.5 and upgraded to 10.6 and have to licences which AHT ? it depends on the version AHT 3A 17for june 2009 but 3A174 for 10.6 hardware is not related but what about firmware updates that can change the way The AHT can work. if you press command and L for  loop AHT will run again and again until it is sure there are no hardware issues onces is not enough and allso re set the P.R.A.M and PMU after using AHT Apple store have the best tools but do not allow you to use them because they might show weak parts !

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