Apple Hardware Test hangs

I'm trying to run the AHT to diagnose recurring kernel panics, but the test hangs after ~10 seconds for the standard test and after ~2.5 minutes for the extended test. Has anyone seen this before? I'm running memtest now so I can get some kind of idea what's going on, but if it comes back clean, I have no idea what to do next.

to diagnose recurring kernel panics
If you have been having kernel panics, the reasons are recorded in the logs. All you need to do is read them out and cut and paste them here (text only please, not a screenshot) and readers will be happy to look them over for you. if they are caused by hardware, it will indicate what subsytem, and possibly more.
Mac OS X: How to log a kernel panic

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    Hello,
    Been having various problems with Leopard/MacBook. Someone suggested running Apple Hardware Test, which I did, in extended + looping mode all night (it cycled 6 times). The test turned up nothing. Can I take this to mean that whatever problems I am having are definitely software related? I am not familiar with the AHT, don't know exactly what it does, nor how I can interpret a "clean" result...
    Many thanks for any advice/tips.

    No indeed (just "Colin" is fine...)
    My problems have mostly been documented by other people, and I have just been monitoring the discussions on these issues.
    Specifically (at the risk of getting off-topic):
    1) inconsistent shared server behaviour: I have 3 other macs at home - an iBook and a G4 MiniMac running Tiger, and a G4 tower, also running Leopard - and most of the time, the tower doesn't show up at all, but I can connect to it via CMD-K, the MiniMac shows up in the sidebar, but won't let me connect, and the iBook, when it is running, behaves normally. Oh, screen sharing doesn't work either: it tries connect but hangs (except for the iBook, which works). I could connect to all four quite normally after upgrading to 10.5.0, using the sidebar icons. Everything worked fine until sometime after the 10.5.1 update, when suddenly everything went pear-shaped. Nothing has changed in the configs of the other machines, and the iBook and the MiniMac are identical in terms of software config (but behave differently as regards this problem?!?)
    Closing Airport and reopening it makes the icons reappear in the sidebar (all of them, G4 tower included), as does relaunching the Finder, but doesn't change the behaviour: I still can't connect. When I try to use the sidebar icon for the tower, it disappears (the icon...)
    As far as I can tell, trying to operate shares from the G4 tower works as Apple intended (although I admit I have not exhaustively tested every option, as I don't have unlimited time...)
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    3) the dreaded Keynote spontaneous reboot problem (I placed a reply about that last night here:
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    4c)sluggish performance with some apps that are normally quite snappy, like Firefox, which seems to hang a lot loading pages, Keynote (saving is often painfully slow), and indeed, trying to copy a 250Mb file from the tower to the MacBook via Airport (having connected using CMD-K) said it was going to take 33 hrs, which I thought was a bit rich...
    4d) hot-swapping a usb pin for a keyboard+optical mouse receiver from the tower to the MacBook sometimes causes something inexplicable to happen to the MacBook's keyboard: both the Caps and the NumLock LEDs come on, and the keyboard has jumped into some config other than what it is normally in (French). I have not been able to determine what the keyboard actually thinks it is when this occurs (3 times now). The command keys (ctrl, alt, cmd) do not appear to work at all. Rebooting corrects it.
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  • Apple Hardware Test (AHT) invoked at startup with 'ALT-D' not 'D'

    Although several reasonnaably reliable sources (including such page as http://support.apple.com/kb/HT1533 ) mention that pressing 'D' at startup will invoke the Apple Hardware Test startup option, at leats on my Macbook Pro 2011 with OSX Lion, EFI 2.8 it is really 'ALT-D' that invokes AHT not 'D'. Pressing the 'D' at startup simply seems to hangs bootup until I release the key.

    OS X Lion- About OS X Recovery
    OS X (Lion/Mountain Lion)- About OS X Recovery
    Computers that can be upgraded to use Lion Internet Recovery
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  • Apple Hardware Test stops responding

    While troubleshooting disk errors on an iMac (27 inch, mid-2010), I tried running the Apple Hardware Test from the Applications Install DVD that came with the computer, by inserting the DVD and holding down the "D" key while rebooting. The test begins normally, then stops working after a few minutes. I let the basic test continue working for more than 30 minutes (twice), but the progress bar hangs at around 95% and screen indicates it has been testing for 3 minutes 20 seconds. I also tried the extended testing and let it go for a couple of hours, but it also appeared to stop responding.
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    The original NVIDIA GeForce 8600M GT is able to take even 512 MB and do HCDP. Apple doesn't support this because they look for the mass of normal consumers and not for professionals. Than they would have used a Nvidia Qudro NVS 320M.
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  • Where can I get an Apple Hardware Test CD? (for a dual 867mhz G4 powermac)

    My Powermac G4 Dual 867mhz is having issues. It either won't boot to the 10.5 server DVD, or if It does, it hangs with the spinning gear.
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    I want to use an Apple Hardware Test CD to do some heavy-duty scanning, but I bought this G4 off eBay and have no original CD's. Where can I find them?

    Hi-
    Download a copy of the AHT here.
    Burn it to CD, and off you go.

  • Kernel Panics, Sudden Logout and Apple Hardware Test

    Hello,
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    If you're able to boot, launch the Console application in any of the following ways:
    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
    ☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
    ☞ If you’re running Mac OS X 10.7 or later, open LaunchPad. Click Utilities, then Console in the page that opens.
    Select the most recent panic log under System Diagnostic Reports. Post the contents — the text, please, not a screenshot. For privacy’s sake, I suggest you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header and body of the report, if it’s present (it may not be.) Please don't post "shutdownStall" or "hang" reports.
    If you can't boot in the usual way, try a safe boot. The instructions provided by Apple are as follows:
    Be sure your Mac is shut down.
    Press the power button.
    Immediately after you hear the startup tone, hold the Shift key. The Shift key should be held as soon as possible after the startup tone, but not before the tone.
    Release the Shift key when you see the gray Apple icon and the progress indicator (looks like a spinning gear).
    During startup, you’ll see a progress bar, and then the login screen, which appears even if you normally log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
    Safe mode is slower than normal, and some things won’t work at all.

  • I want to run apple Hardware Test but can't find it on any CD's.  I bought my iMac in 2009.  I think it had 10.4 installed.  It's not on my installation disk.  Where can I find it?

    I want to run Apple Hardware Text but can't find it on any CD's.  I bought my iMac in 2009.  It came with 10.4.  Apple Hardware Test is not on the installation disk.  Should I have it?  Where can I find it?  I"m now running 10.7.4.

    The disc plainly state:
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    Works here. However, there was an issue with installing Lion that screwed this process up.
    Mount disc 2, run this command in the Terminal app, OPTION-click & hold Finder's Dock icon, and select RELAUNCH:
    defaults write com.apple.finder AppleShowAllFiles 1
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    Now, drill down to /"Applications Install\ Disc"/System/Library/CoreServices/ and drag the .diagnostics folder into your Lion boot volume's /System/Library/CoreServices/ folder. That might require you to authenticate to copy the folder into the CoreServices subfolder.
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    defaults write com.apple.finder AppleShowAllFiles 0
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    If that doesn't do the trick, run this command in the Terminal app:
    sudo chown -R root:wheel /System/Library/CoreServices/.diagnostics
    At the Password: prompt, carefully type in your admin password, since nothing shows up on the screen, and hit the return key. Then, try another restart, holding down the D key.

  • Separate Apple Hardware Test DVD for MacBook Pro original??

    Hey Folks, I'm trying to verify whether or not the MacBook Pro came with the Apple Hardware Test as a separate DVD disk. The "MacBook Pro" Install disk references it but I can't seem to find the software on that DVD. Any guesses out there would be appreciated. I'm about to perform an upgrade for Tiger to Leopard and wnat to give my laptop the "hairy eyeball" before I begin.
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    Insert the DVD and start up the computer with the D key held down. The Hardware Test is on a separate area of the DVD and isn't normally accessible.
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  • 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).
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    To use Internet Apple Hardware Test, start up your Mac and hold down both the option and D keys on your keyboard.

  • Can anyone tell me what apple hardware test error code apple hardware 4MOT/4/40000002: Exhaust-1153 or 1209 means? I am running a MacBook Pro.

    Can anyone tell me what apple hardware test error code apple hardware 4MOT/4/40000002: Exhaust-1153 or 1209 means? I am running a MacBook Pro

    The motor on the exhaust fan has failed or is failing.

  • Can't boot off Apple Hardware Test disk

    Can anyone suggest why my laptop won't boot off of its Apple Hardware Test disk anymore? I have not tried it in years, but want to try now. I have the original, and a copy I made years ago, and neither will boot. I can select them at startup disks in that preference pane in OSX, but then it fails to find it, and boots into OSX. I can boot into OS9 on the hard drive. I was able to partially boot off of a different AHT disk from my 12" Albook G4, but it gave the message that I can't use that disk since it is not meant for the Tibook. One idea is that TechTool tells me that "macintosh startup file was absent", and the Help file states:
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  • 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:
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    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.
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    I'm trying to find the answer to a similiar question.  Here's my thread.
    https://discussions.apple.com/thread/3549995

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    what are the meanings of Apple Hardware Test error codes 4m0t/4/40000003:hdd-1300 and 4m0t/4/40000003:hdd-1308?

    Thanks - Even though I'm years out of warranty I got chat help from Apple (I said they should help me since the codes aren't published.)  We covered three different questions, and although I didn't get a specific decoding of the error code, I got confirmation of what other comments here imply - it might have helped that I indicated I'd already been here - and useful links to how to do back ups, including to CD(s). (I don't have a lot of data on this computer yet)
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  • Apple Hardware Test (AHT) Hard Drive Full Read Fail But SMART Status OK

    I have a Mac mini Server from Mid 2010 running Snow Leopard Server.
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    Actually, i just spent like 1 hr working with disk utility using the os x install disk and i think it finally worked. im so happy for myself! yay... i wouldnt accept no for an answer. Disk utility kept saying "oh first aid failed because it didnt exit right" or something... total garbage response... i kept pressing verify disk and then repair disk and then i did the verify permissions and repair permissions too... didnt really know what i was doing with the permissions... but it finally worked so thats all that mattered! yay... its back to normal!!

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