Apple Hardware Test problem on Mountain Lion

I;ve been trying to do the Apple Hardware Test with no success. I've tried holding down D and option-D yet nothing. My macbook just boots up as normal. It is recommended to download the EPI firmware upgrade fro Lion recovery. That one is just not compatible with my system and could not install it. What's next? Can I just download the AHT from somewhere?

It depends on what OS your mac shipped with. Which OS did it ship with?
http://support.apple.com/kb/ht1509

Similar Messages

  • Apple Hardware Test problems

    Hi All. I have a very weird problem here, as I can't get the Apple Hardware Test to start on my late 2008, 2.66 MBP15 inch model# MC026LL/A (released early 2009 as a quiet upgrade from 2.53). Here's the story:
    I opened up my machine as usual one morning, and the optical drive made a very weird noise I never heard before. So I decided to run the Apple Hardware Test (AHT) to see if anything was amiss. Well, I inserted the second install disk, held down the "d" key, and restarted the machine. It began to boot into the hardware test, but just after the AHT screen appears the computer just shut down. This happens every time I try to run the AHT.
    I went to an Apple Store while I was on holiday in Brisbane (they don't have one here in Adelaide), and the genius said it was likely a bad optical drive. Well, I returned to Adelaide last week and had the local Apple Authorized store replace the optical drive. Tried to run AHT once again, and the same problem persists. So the original problem wasn't with the optical drive.
    I thought maybe I accidentally used the startup disks for my wife's late 2008 15inch, 2.4, MBP (the one actually released in late 2008). I've looked around for the other sets of disks and can't find them. So here's what I'm asking help for: can someone who owns a 15inch MBP 2.66 15-inch (released in early 2009, model# MC026LL/A ) please tell me what the part # is for their set of install disks? It is written on the plastic sleeves of the install disks. And, could this person please tell which version of AHT is written on the disk itself? The set I have (which I think might be my wife's) has AHT version 3A158.
    Might this be the problem, or should my computer still be able to run the hardware test using my wife's disks? I know they are both technically late-2008 15inch unibody MBPs, but I think my 2.66 (again, quietly updated and released in early 2009) might require a different AHT version, which would explain my inability to run the test. If not, what might be causing my computer to not run the AHT? I tried reinstalling OS X to no avail.
    Thanks for all of your help!

    I think I share your skepticism--if your Mac was shipped with the later version of the OS, you should not have been able to do a clean install with discs of an earlier version. It looks like some machines originally shipped with OS X v. 10.5.5 and others with OS X v. 10.5.6. I don't remember just when 10.5.6 came out.
    Your two machines are likely very similar in build, and maybe similar enough for the OS to install. It may be that the AHT is specifically designed for the hardware in each machine, and that would be a bit different.
    As someone else said in another thread, there ought to be a tutorial on how to keep track of the original install discs since they are always getting lost. Maybe a secure note in the keychain or something like that.
    Out of curiosity, does the AHT work on your wife's machine? If not, there could be a problem with the install disc itself, and if so, you might be able to get a free replacement under warranty.
    Good luck!

  • How to start Apple Hardware Test under OS X Lion

    Since I made the upgrade to OS X Lion I cannot start Apple Hardware Test with the old method that works under Snow Leopard.
    Under OS X 10.6.8 I used to keep D key pressed until a picture appeared in the middle of the screen. With Lion it doesn't work, even under Wi-Fi internet connection.
    Any suggestions?

    Have a look at this discussion https://discussions.apple.com/message/15772841#15772841
    Stefan

  • Apple Hardware Test  Problem Detected

    I did an Apple Hardware Test, (where you restart your computer while holding down D and Apple detects if you have an problems on your computer).  And I was notified that I had this problem: "4SNS/1/40000001:1DOR-0.000"  What does this mean?  How do I fix this problem?

    Help here >  Mac notebooks: Apple Hardware Test may report SNS alert when power adapter is not connected

  • Apple Hardware Test Problem!!!

    I've been having problems with my 4 month old G5 and so I ran the AHT.First I ran the extensive test and the whole thing froze after 3 minutes.I turned the computer off and on again.It started up like nothing hapened.I restarted,ran the short test and the same thing happened at 1 min 55sec of the test. The computer seems to be running fine but when it's frozen up I'm afraid I have two red led's on the front (I take that's the logic board?) it seems to be LED#1 and LED#3.
    I wouldn't bother anyone but the closes reliable Apple Certfied Service Provider is 230 kilometers away...seriously.
    Thanx a bunch!

    Thank you guys so much! I just want to clarify this
    one more time (I am new the whole Mac culure)
    My AHT corresponds to Mac OS 10.4.4 making it
    useless, right? I did read quite a few posts about
    outdated AHT but I didn't get if there was a way to
    get a newer version.
    A new version of OSX will not affect the hardware test because the hardware test doesn't use the operating system. It will run even if the hard drive is empty. It is possible that a firmware update might require a new version hardware test. If the hardware test is failing, remove any non-Apple hardware (RAM, PCI boards, etc.), unplug all FireWire and USB devices (except mouse and keyboard), and try the test again. If it still fails, call Apple. If you need a newer version of the hardware test, they will let you now.

  • Where is Mountain Lion's Apple Hardware Test?

    Hi. My Snow Leopard DVDs which are in good condition won't read anymore  after installing Lion and now Mountain Lion (the Superdrives' working properly as I can burn CDs and DVDs. The DVD does see it as blank with Untitled DVD but .iso Linux images for example boot when you restart it). Apple may have intentionally made the Superdrive not be able to read original disks to favor USB Flash drives and the Cloud I'm guessing which is fine by me coz' those can never be damaged physically or are less prone to physical damage.
    But the Apple Hardware Test is in the Applications DVD of the Snow Leopard. How do I run Apple Hardware Test then on Mountain Lion? Any third-party app that goes beyond what Apple Hardware Test can do that you could recommend?
    Thank you in advance.
    God bless.

    I don't understand why your system is not recognizing the SL install disk - it should. The timing of any key combo with a restart is difficult with a wireless keyboard - unless the timing is perfect, it won't work. As suggested, try /borrow a USB keyboard.
    Another thing to try is to insert the SL install disk; then go to Startup Disk Pane in System Preferences and see if your SL disk is listed in the choices. If it is, then select it and hit restart.
    As for the question re. the bootable USB stick/DVD, I have not tried that, so I cannot say if that would work or not. Does your Mac have internet recovery or did you install the firmware for it as outlined here:
    http://support.apple.com/kb/HT4904
    Having read all I could find about recovery, there is no mention of any Apple Hardware Test; not even here (which is quite comprehensive):
    http://pondini.org/OSX/RecoveryHD.html
    The only things mentioned are the options in Disk Utility. So, unless you can boot from your SL install disk and get to the test that way, I am stumped. My suggestion would be to book an appointment at your nearest Genius Bar (if you are past the warranty) or call Apple support if you're still covered.

  • I have a latest 2.7 EFI update but i still don't have the ATH(Apple Hardware Test) software! why is that so? do we have it on mountain lion?

    So as u know the question
    ill tell u the steps to try them out(no harm will be caused to u or ur com)
    During restart-up press the D button before the gray screen appears and hold it for about a minute until u see a 4 or 6 bit image of old mac icon appear and then it loads u go select any language and click hardware test full and then tell me if it DOES HAPPEN ON OS X 10.8(mountain lion).
    Thnx apple and u guys!

    To use Internet Apple Hardware Test, start up your Mac and hold down both the option and D keys on your keyboard.

  • Apple Hardware Test (AHT) is GONE!! after Lion install

    After installing Lion on my new early 2011 MBP the AHT is gone...
    Pressing "D" will not load the AHT (it was installed and working fine in my MBP prior to Lion).
    I called the APP hotline to inquire about it and the technician couldn't boot into the AHT on all the macs with Lion available to him.
    (a report has been filed with the engineering team)
    According to the newly updated KB: http://support.apple.com/kb/ht1509
    QUOTE: "Some Macintosh computers that shipped with OS X Lion support the use of Apple Hardware Test over the Internet."
    After pressing and holding the "D" key the Mac just loads into the desktop... There is no online AHT or pre-installed AHT available...
    >> Is anybody else having this problem?? <<
    If you are having the same problem maybe you should also report it to Apple: http://www.apple.com/feedback/ or the APP hotline...

    HOW TO FIX THE AHT PROBLEM IN LION:
    Just to clarify what Francisco was saying in Spanish:
    > The original AHT that came preinstalled in the MacBook Pro (and maybe all other Macs) is found in disk #2.
    > Originally I thought the AHT had a different partition on the HD but it ends up being an extension of the OS.
    > This is not installed in OS X Lion, If you used the USB key or download it from the App Store, the AHT will not be included.
    > So, to install it back in, you can either run the install from the DVD (just make sure you don't install iLife again and other files which you may not need)
    OR
    For Road Warriors
    Since installing the bundled package will also install other Snow Leopard files; You might want to try this:
    > Download Pacifist ( http://www.charlessoft.com/ )
    > Drill down the CPUHelpFiles install package and only install the CPU_AHT package.
    By the way, there is no way of undoing this, unless you want to reinstall Lion from the recovery partition.
    > Restart your mac
    > Everything should be A+ ok
    > To test what you just installed restart the mac and hold down the "D" key before the screen turns white/gray. After a few seconds you should see the AHT loading screen:
    Done! there is no need to have that DVD with you when you travel...

  • HT201257 Holding down "D" no longer starts Apple Hardware Test!  Any idea what's happened and how I fix it?  Or do I need to go to the Genius Bar?  MacBook Pro with Lion Preinstalled.

    I have a MacBook Pro with Lion Preinstalled, so AHT was present on the hard disc and worked when the product was new.  One of the first things I did from new was run AHT and it worked fine.  But now it doesn't start - instead the machine (eventually) boots into normal OS X.
    Holding down "D" no longer starts Apple Hardware Test!  Any idea what's happened and how I fix it?  Or do I need to go to the Genius Bar? 
    Software  Mac OS X Lion 10.7.3 (11D50b), if it makes any difference.
    Any ideas?

    Thanks.  However, even with an internet connection that doesn't work for me - the machine just (after an extended delay) boots normally.  It doesn't download.
    Option-D works for an Internet-based AHT.  However that only works with an internet connection.  It doesn't seem to download it and install it - it needs internet every time.
    Any idea how my local copy of AHT disappeared?  I haven't repartitioned the drive or knowingly deleted anything.  And how do I reinstate it (because if you need AHT your hardware problems may preclude internet access!)?

  • My Mid-2011 iMac with pre-installed Lion can't load AHT (Apple Hardware Test) over internet

    I have a Mid-2011 iMac (3.4GHz) of which Apple's Support document for the Apple Hardware Test (http://support.apple.com/kb/ht1509) says:
    Some Macintosh computers that shipped with OS X Lion support the use of Apple Hardware Test over the Internet. These computers will start up to an Internet-based version of AHT if the hard drive does not contain AHT.
    Well, this doesn't work for me. My Mac is on a DHCP-supporting router which has constant internet connection. Yet, when I turn off the Mac and then on again, holding the D key down even before the screen turns on, the Mac does indeed react to this key as it's then turning the screen on and taking another about half minute before it continues with the boot process along with showing the Mac symbol. Without the D, the Mac symbol comes up quickly.
    So, it appears that the iMac is indeed trying to get AHT over the internet. Just that it doesn't succeed in it, and probably timing out after a while.
    Any suggestions how to fix this?

    Re
    extract from kb article
    PPPoE (where there is no router handling the PPPoE connection)
    No
    No
    Captive-Networks (where you click an "Agree" button to access the Internet)
    Yes
    No
    Proxies (where specific proxy servers must be configured in network preferences)
    No
    No
    Certificate-based authentication / 802.1x
    No
    No
    try check if you are in that case for your internet acces ?
    could be a firewall problem too , if is possible try desable firewall ( or any internet filter )
    no you can not see a wifi selection if you are wired ( using cable )
    by the way D key for AHT need to be pressed AFTER start up sound , and hold at min one minute
    HTH
    Pierre

  • Cannot start-up to the Apple Hardware Test — MacBook Pro & Lion

    Whenever I try holding the D key before and throughout all of the start-up process, it simply makes the grey screen appear for longer, and slow the whole process... but never beings the Apple Hardware Test.
    I'm following Apple's official instructions:
    To start up your computer in Apple Hardware Test:
    Press the power button to turn on your computer.
    Press and hold the D key before the gray startup screen appears. An Internet-enabled connection via Ethernet or Wi-Fi is required to use this feature.
    Note: Some Macintosh computers that shipped with OS X Lion support the use of Apple Hardware Test over the Internet. These computers will start up to an Internet-based version of AHT if the hard drive does not contain AHT.
    Why doesn't it work?
    My MBP was shipped as follows:
    For Apple computers that shipped with Mac OS X v10.5.5 to 10.6.7, Apple Hardware Test is located on the Applications Install Disc 2 and should be included with your computer.
    But I have upgraded to Lion! Do I need the disk still? If so, why am I to lumber around a disk from a previous OS... good that I didn't throw it out!

    I'm trying to find the answer to a similiar question.  Here's my thread.
    https://discussions.apple.com/thread/3549995

  • Disk repair and Apple Hardware Test says HD has no problem but grey screen still persists on MBP

    5 days ago while on vacation, my MBP just froze with the grey screen, apple logo and spinning gear.
    I performed all that was instructed on the following discussions:
    http://support.apple.com/kb/TS2570 
    except  Archive and Install installation of MAC OS X and Erase and Install  MAC OS X since I was able to save my files in  my husband's MBP via Firewire Target Disk Mode. At this point, I am still apprehensive in erasing my files and installing again the MAC OS X.
    When I did the Disk Repair under the Disk utilities, it says that my Mac Os X is ok.  (It also said ok when I did the fsck -fy when I till did not have my CD when I was on vacation)
    I also tried the Apple Hardware Test (AHT)   to further l test the hardware of my MBP and performed an extended checking and after an hour, its says that my HD has no problem.
    Yet, after all these, when I restart my computer, it still has the grey screen with apple logo and spinning wheel! 
    Can anyone tell me what else can I do??? Appreciate any help!

    I like the free demo of SuperDuper to make clones. It's free,  Leopard and Snow ready and is easy to use. If you buy the full version you can do incremental backups.
    You should use Disk Utility to do a Disk Repair, as shown in this link, booted up on your install disk, before you make a clone of it. I use DiskWarrior for that instead.
    I then partition my external disk, in Disk Utility, with a partition that is the same size , actually a tad bigger, as my system disk. I then use SuperDuper to clone my system disk over to that partition.
    With a clone on an external FireWire drive (USB drives are not bootable on PPC Macs but are on some Intel Macs) you can bootup on it to do your repairs, on the main drive, or just run your Mac anytime you have trouble with your main drive.
    That's why I like clones better then Time Machine. You can just bootup on them and use your Mac.
    On the DiskWarrior thing, I use DW once a month to try and catch errors in my system from getting too far out of hand. It has repaired every little and big issue I have ever had with my  three Macs.
    And I have had times when Disk Utility's Disk Repair says everything's fine but my system was still having issues. Disk Utility, in my experience, cannot be totally relied on to find and report all issues. It just isn't robust enough.
    I run DiskWarrior, it does find errors, repairs them and I'm back in business. I swear by it!
    DALE

  • Problem apple hardware test

    my macbook pro early 2011 i5 is too slow so i use onyx with no result so i make an Apple Hardware Test for check and i have a alert! a problem hardware with code:
    4SNS/1/C0000008:TPCD--124

    That sensor is reacting to the temperature at the CPU power bus.  Make an appointment at an Apple store genius bar for a free evaluation.  This is a hardware problem with no software solution.
    Ciao.

  • Can anyone explain why I cannot restart my computer after apple hardware test with no problem found

    Can any body help
    when starting computer apple hardware test appears
    following test, no problem found but cannot restart computer
    apple hardware test appears again
    How can i skip apple hardware test?

    Have you read for possible solutions over in the "More Like This" thread over here?-----------------------> 

  • HT201257 I just bought an imac in september 2012.  And i just find out that my microphone is not working.  So i did an apple hardware test and with no problems found?  I have sound but no one can hear me, not even the computer.  Should i bring it back to

    I just bought an imac in september 2012.  And i just find out that my microphone is not working.  So i did an apple hardware test and with no problems found?  I have sound but no one can hear me, not even the computer.  Should i bring it back to the store

    Before you go through that trouble open About this Mac > More Info... > System Report > Audio and see if the system actually knows it has a microphone.  Then you can look into Applications > Utilities >  Audio MIDI Setup and see if the microphone is there, select it and make sure the sliders are set to full. Then in System Preferences look for Sound > Input and make sure it shows up there and the sliders are at least half way up. If none of that works do a
    SMC RESET
    http://support.apple.com/kb/HT3964
    Shut down the computer.
    Unplug the computer's power cord and ALL peripherals.
    Wait 15 seconds.
    Attach the computers power cable.
    Wait another 5 seconds and press the power button to turn on the computer.
    It is the 5 second timing that initiates the reset.
    then go through the process of looking for the microphone again as the reset may reenable the mic.

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