Hardware test not working with Yosemite, External Display not working with Yosemite

What's wrong with Yosemite developers....
i can't connect my macbook pro with my tv and if i wanna start a hardware test, it doesn't starts it....
please help as apple *****!!!

It would be helpful if you indicated the exact model/year Macbook that you have.

Similar Messages

  • Macbook dies after 2008-005 security update: even hardware test not working

    My Macbook no longer boots after installing security update 2008-005. Behaves as if HD is dead, AND as if boots from SuperDrive are broken too.
    Sequence of events:
    1. 10.5.4, Software Update notifies me of update.
    2. I permit it. Immediately requires a reboot.
    3. Go away for several hours.
    4. Upon return, I notice the Leopard outer-space background.
    5. Spinning beachball when I move the mouse.
    6. Go away for several minutes.
    7. Return. No change. Power down computer.
    OK ... by now, you may be saying that it might still have been updating and I shouldn't have interrupted it.
    But since then, the machine behaves not only like the disk is dead, but I can't even get a hardware test to run from DVD.
    So, to continue.
    8. Start machine again. Apple boot sound. Nothing on screen.
    9. After a while, flashing "folder" icon with question mark.
    Since then I've attempted to boot in safe mode, verbose mode, FireWire target disk mode (against a 10.4.x box), boot from original install disk, boot into hardware test mode from original install disk. None of these things worked. I've reset the PRAM.
    The only diagnostic activity of all of these that has produced any different feedback is the PRAM reset (which sounded the Apple boot sound a second time). Everything else does not work. If the HD was dead, I could understand that none of the attempts to boot into FireWire target disk mode, or to boot from DVD and then expect to see the HD mount in some way, would work. But since it doesn't even boot the hardware test from the DVD, I'm really baffled. Any ideas? Thanks.

    Well, my solution was to buy DiskWarrior and copy what I could (which was a lot, thankfully) to a FireWire external disk, then reinstall. DiskWarrior reports S.M.A.R.T. status OK, so I've gone with a fresh partition in Disk Utility and successfully installed 10.4 from the original DVDs.
    Have also run Apple Hardware Test and had no problems, so I've decided to trust the drive in the short term.
    Unfortunately, now, 10.5 upgrade disks won't finish and guess what ... a partial install of 10.5 breaks the 10.4! So, the machine has a recognizable startup disk but justs sits in a loop rebooting itself, presumably as it hits some inter-10.4/10.5 state and gives up.
    Next up I tried to restore my 10.5 from a wired ethernet connection to my Time Capsule. Having never once been able to browse my backups in Time Machine under 10.5, I was somewhat surprised to find that the 10.5 Installer was happy to let me try a restore from the Time Capsule. It crunched away until it was happy that I had enough space on my new partition, and then did what seemed a pretty instantaneous restore. The Macbook reboots and ... can't see the startup disk.
    Maybe my disk really is on the way out.

  • Hardware Test not working

    So I'm attempting to do a Hardware test because my audio input port doesn't seem to be working. So I held down "D" and restarted. The computer just booted up like normal to the login screen even though I continued holding "D" until the apple logo appeared. I then inserted the application Install Disc and repeated those steps and it still went to the login screen. What am I doing wrong?
    I don't remember setting up a firmware password so that shouldn't be the issue.

    If you have erased & reformatted your iMac's hard drive at any point, then the hidden partition containing AHT has been removed & you cannot start up from it. But you should still be able to start up from the partition containing it on your original system DVD. However, since AHT is system-specific, you must make sure you use the grey system disc that came with your iMac, & that if you have more than one disc in the set that you use the one marked with the instructions for starting up into AHT. (AHT is on only one disc in the set.)
    Assuming your iMac is the 21.5" Mid 2010 model (identified as "iMac11,2" in System Profiler), then your system disc should have AHT version 3A195 on it & this should be printed somewhere on the face of the DVD. No other version of AHT will work with this model.
    If you have the right disc & it still isn't working, it is possible that your timing for pressing the "D" key is a little off. Try restarting the iMac without the key pressed & then press it just after you hear the startup chime. Continue holding it down until the iMac starts up, hopefully into AHT.

  • Can Apple Hardware Test disk work when a hard drive has no OS installed yet

    I removed a bad original hard drive from a PowerBook G4 12" aluminum notebook. It made clicking sounds as it ran, and would not boot. I replaced it with a 320GB Western Digital HD. I also upgraded the original 512KB memory with 1GB.
    Before removing the bad hard drive, I was able to boot just beyond the language selection dialog from a full installation CD (Mac OS X v10.2) while holding the "C" key during power on, but could not install it, of course, on the bad hard drive.
    Now with new hard drive replacement in the PowerBook (formatted via fire wire from a MacBook Pro running Snow Leopard) and the upgraded memory, I ran a Disk Utility check via fire wire and found the new hard drive in the PowerBook to be in good working order and ready for an OS installation. However I can no longer boot the PowerBook G4 with the full installation CD in the customary manner, getting instead the flashing question mark over the finder folder icon.
    I decided to see if there might be some other problem by using a PowerBook G4 Apple Hardware Test disk. Upon booting from the test disk, I get a message that declares the disk will not work with the PowerBook G4 machine.
    What's up?
    Message was edited by: techtoots

    There's more to my original question than whats on the face of it. Please read more about this below. However, I will still wish to know if an AHT, say an original one if that's important, will do it's thing when no OS is installed.
    Pretty sure that I'm NOT using either disk or sets of disks that came with this G4 PB. Included among what I do have are 6 grey disks:
    __PB G4 Software Restore 1
    __PB G4 Software Restore 2
    __PB G4 Software Restore 3
    __PB G4 Mac OS 9 Install v9.2.2
    __PB G4 Mac OS X Install v10.1.4
    __PB G4 Applications
    And 2 Jaguar full install DVDs:
    __Mac OS X v10.2 Install Disc 1
    __Mac OS X v10.2 Install Disc 2
    I was hoping to be able to find something useful among these disks - if not in a strait forward manner, them by some manner of hacking.
    I know how to use my MacBook Pro create a disk image that will house any number of these DVDs. My thought is to create something that can be cloned to the PB G4 via fire wire. I just need to be sure how to daisy chain multiple DVDs in terminal mode, if more than one DVD is required in the cloning process.
    I have placed an order for Leopard 10.5 - full installation DVD direct from Apple.
    Once received, I will have 14 days to return it unopened. So, I want to be sure this PB G4 is operable before I break the seal on the Leopard package.
    Therefore it's not so important that I clone everything from the original installation - just enough to see that the PB G4 boots and runs in Finder. If I can achieve that much, I will advance with Leopard 10.5 when it arrives.
    My *PROCESSOR SPEED* is 1.33GHz
    Other original specs:
    L2 Cache 512 KB
    Memory 512 MB
    Bus Speed 167 MHz
    Boot ROMV 4.8.3f1
    Memory Slot 256 MB DDR-SDRAM

  • Can't get Apple Hardware Test to work

    So I'm trying to run the Apple Hardware Test. I start the computer up and hold "D". It boots into OS X like a normal startup. So, I plug in the Ethernet and hold option-D to do the AHT from the Internet. It tells me "Apple Hardware Test does not support this machine".
    So, I try to install the "iMac EFI Update 1.8" from http://support.apple.com/kb/DL1493 (which is for my iMac model, which is a iMac (Mid 2010)), but it says "This software is not supported on your system." I also tried the later version, v1.9, from http://support.apple.com/kb/DL1498 but it isn't for my iMac and so I get the same error.
    So now I'm stuck. What should I do now?

    Thanks that was it. It says AHT on the disk itself. I successfully ran it, and it found no problems ("No trouble found.") I ran the basic test only because I have 16 GB RAM, and so I imagine it would take a long time to run the extended—probably at least two hours? And I don't know what more that would find that the basic wouldn't?

  • How do I run Apple Hardware Test on a 2012 MacBook Air with 10.8.4?

    Hello everyone,
    I am trying to run Apple Hardware Test on a mid-2012 MacBook Air with 10.8.4 installed. Whenever I restart and hold the letter D my computer goes into internet recovery mode and asks me to connect to Wifi... Please help, thanks!

    Using Apple Hardware Test on computers with OS X 10.7 or later
    Mac NoteBook and Desktop computers shipping with OS X 10.7 or later have a partition on the hard drive or flash storage that contains AHT. To start AHT on these computers please follow these instructions:
    Press the power button to turn on your computer.
    Press and hold the D key before the gray startup screen appears.
    It takes a minute or so for AHT to start up and inspect your hardware configuration. While this is taking place, an icon appears on the screen:
    When the process is complete, select your language and click the right arrow. If you aren't using a mouse, you can use the up and down arrows to select a language and then press the Return key.
    The AHT console appears. You can choose which sort of test or tests to perform:
    To perform all of the basic tests, click the Test button or press the "T" key or the Return key.
    To perform a more thorough diagnostic test, select the "Perform extended testing" checkbox under the Test button before you click the Test button.
    Note: Your test results will appear in the window in the bottom-right of the console.To exit AHT, click Restart or Shut Down at the bottom of the window.
    Some Macintosh computers that shipped with OS X Lion and later 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.  An Internet-enabled connection via Ethernet or Wi-Fi is required to use this feature. Internet-based AHT functions the same as AHT on the hard drive or flash storage outlined above.
    The Mac NoteBook and Desktop computers listed in Computers that can be upgraded to use OS X Internet Recovery will require a firmware in order to support the Internet version of AHT. Without this update you may see the behavior discussed in this article.

  • HT201257 Hardware test will not complete

    My hardware test runs until its about 9/10 done then it just stays on the progress forever. It never updates the time of testing either. I tired running it of the disk and everything else the help forums told me to do but nothing helped. HELP!

    Thanks for the ideas. Apparently some additional context may be helpful.
    (1) Yesterday, my Mac Pro booted normally, but soon the monitor went blank. I had to hold down the computer's on button to force the computer to turn off.
    (2) In a few minutes, I tried restarting. Still the monitor's screen was black. In fact, the monitor remained in standby mode. Further, when I tried my second monitor, it also remained in standby mode.
    (3) Today, however, the computer booted and worked fine. Nonetheless, it seemed reasonable to run a test on the hardware.
    (4) Every month, I run both Apple Disc Utility and Disc Warrior on all drives. Further both programs say all four internal drives are fine.
    (5) No peripherals are connected other than the monitor, keyboard, and mouse.
    (6) Neither my original Leopard OS package nor my original Snow Leopard OS package came with a second optical disc. Neither of the original OS discs will run Apple Hardware Test on restart with the "d" key depressed.
    (7) I suppose that if I never can get Apple Hardware Test to run, and I have trouble with video again, I'll try booting from Snow Leopard (my previous OS).
    I hope the preceding helps. Thanks again.

  • External Displays & Kernal Panics

    Last year I twice had to get my logic board replaced after two slightly different "events."
    The first panic started with the green and purple pixeled screen and then suddenly was caught in a "panic loop."
    The second happened suddenly. The screen simply would start up, though the computer seemed to be running.
    I often use a 20" Apple Cinema Screen as an additional monitor and now I'm paranoid about connecting it up again, fearing that this may be my cause of kernel panics. This is not good though, cause I need that screen to be productive.
    Am I just paranoid or could this be causing problems?

    As the display acts as a hub, its USB or Firewire ports may be damaged and thus causing a kernel panic, or one of the peripherals you have attached through it doesn't have the appropriate drivers. If you used the Migration Assistant to migrate from a PowerPC Mac, some of the PowerPC drivers could have migrated over, and thus causing a kernel panic, as many drivers have to be rewritten for Intel compatibility. If not, try to isolate the problem down to the hardware test that came with the computer, possibly swapping RAM for higher quality RAM as my FAQ* explains:
    And if neither of those fixes it, backup your data*:
    And check to make sure the directory is OK*:
    And if that doesn't help, then erase and install the operating system.
    If nothing but an Apple external display is hooked up, to the computer, and an erase and installed operating system is there, you can expect the display itself to be in need of repair, if that's the only thing that causes a kernel panic.
    - * Links to my pages may give me compensation.
    Message was edited by: a brody

  • Using Apple Hardware Test?

    Hi, I need some assistance.
    I've got a MacBook Pro from 2011. That have some hardware, I'm sure. Please see this post. https://discussions.apple.com/thread/6029708
    So I'm trying to use Apple Hardware Test. http://support.apple.com/kb/HT1509?viewlocale=en_US
    But I can't make it work. And I've read the instruction for using the Apple Diagnostics test as well. http://support.apple.com/kb/HT5781?viewlocale=en_US
    And it seems to me to be exact same approach.
    Using Apple Hardware Test on computers with OS X 10.7 or later
    1. Press the power button to turn on your computer.
    2. Press and hold the D key before the gray startup screen appears.
    3. It takes a minute or so for AHT to start up and inspect your hardware configuration. While this is taking place, an icon appears on the screen...
    To start Apple Diagnostics:
    Turn off your computer if it is on by choosing Shut Down from the Apple () menu.
    Press the power button to turn on your computer.
    Immediately press and hold the D key until Apple Diagnostics begins.
    If you previously selected a language for” the computer, a "Checking your Mac" screen will appear in that language.
    Can anyone instruct help me? I've tried using 25 times enabling the AHT. But the little icon never shows. I just get the regular login screen after some time.
    MacBook Pro early 2011.
    OS X 10.9.2

    That worked! Apple own instructions are really not impressive. Haha. ****.

  • When starting the hardware test near the end the mouse slowly down and canceling the test isn't possible and it doesn't finish?

    Hardware test not working?

    No. You can reset the SMC with the computer already shutdown.
    To Reset NVRAM/PRAM:
    Resetting NVRAM
    Shut down your Mac.
    Locate the following keys on the keyboard: Command (⌘), Option, P, and R.
    Turn on your Mac.
    Press and hold the Command-Option-P-R keys immediately after you hear the startup sound.
    Hold these keys until the computer restarts and you hear the startup sound for a second time.
    Release the keys.
    Can you boot to Recovery?

  • Hardware test macbook pro mavericks

    Does anybody know how to make hardware test on a Macbook pro on Mavericks?

    I have a MacBook Pro 8,2 early 2011 running Mavericks. I was unable to get Apple Hardware Test to run with the "d" key held down at boot. This is because there is no Apple Hardware Test on these machines. To run AHT you must have a .diagnostics folder (containing the correct AHT files) here: /System/Library/Core Services/.diagnostics
    Here's how I was able to get AHT to work:
    1. You don't need to take any action from this page (I wrote it up below) but this is where I started:
    http://rivenbyfive.blogspot.com/2012/01/download-and-run-apple-hardware-test.htm l
    there's a link on that page to go here to download many of the AHT DMGs:
    I downloaded the DMG for the 6,2 (here's the direct link to the DMG if you want). There is no AHT DMG for 8,2, but 6,2 worked fine for me:
    Open the DMG and you'll see: System/Library/Core Services/.diagnostics
    NOTE: If you can't see the .diagnostics (which is a hidden file) - any file with a dot in front of it is invisible in unix, so to see it you'll need to turn hidden files on. Here's a simple "show/hide invisibles" script I've been using forever and it has worked with Lion all the way up to Mavericks. I didn't write this simple script and I don't remember where I got it, but I've posted it up here, or you can find your own:
    open that zip and double click the script inside to show invisible files. (note: I keep this script in my ~/Library/Scripts folder). Now you can see .diagnostics in that Core Services folder in the DMG.
    Go to System/Library/Core Services/ on your MBP (again, mine is the MBP 8,2 early 2011). Drag the .diagnostics folder from the Core Services folder in the DMG into the same folder (Core Services) on your mac. AHT is now "installed" in your system.
    Reboot the Mac with "option D" held down (worked for me, maybe try just the "d" if that doesn't work) until you see the Apple Hardware Test icon in the center. The test showed my correct hardware, and I was able to successfully test my mac.
    I hope this works for you.
    last note: If you want to stop seeing invisible files just double click that script again.

  • Apple Hardware Test (AHT), buzzing noise, fan blows loud, & AHT crashes

    Hi there,
    I've finally had it with some hardware issues that I've had since day 1 of owning this G5 Dual 1.8.
    Running10.4.9 OSX...
    Nothing that has affected my day to day working-yet, but growing problems, fans get loud, awful buzzing noise from inside the tower comes and goes and grows in volume when it's happening. I believe it's coming from the internal drive bays... Both of which are filled with 2 new SATA Seagate internals that don't appear to be slowing up or spinning a processing error when I'm working...
    When I run an Apple Hardware Test, The AHT disc crashes each time at the 5 minute and :12 second mark while "In Progress" on the "Mass Storage" test, it freezes and the fan gets loud. I do a hard restart to get up and running ok each time afterwards.
    I've never received a complete AHT result of tests summary, ever, so I don't know what's really wrong, ever. But I know something is not right. Using Disk Utility is a joke, SMART status is always "verified" of course, no obvious system software errors.
    I'm using the disc that came with my G5 "Additional Software Apple Hardware Test":
    AHT Version 2.2.2
    Disc Version: 1.1
    I've scoured Apple knowledge base for anything on this version-but nothing.
    Any suggestions please. IS there any hardware testing software out there besides the faulty AHT disc software Apple provides? The nearest Apple store is over an hour and half away, I just don't have time to drive there to hear the same thing I already know, and if I could pinpoint the problem myself with proper software, I can handle doing the maintenance....
    Please help!

    Some G5s had a firmware update that caused problems with the version of Apple Hardware Test that shipped with the G5. The Latest G5 Apple Hardware Test is 2.2.5
    Call Apple and see if you can get it.
    Another hardware test is TechTool Pro
    Meanwhile, try testing with some of the RAM removed. Try different combinations of RAM modules and slots. Always use them in pairs.

  • 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:
    Having read all I could find about recovery, there is no mention of any Apple Hardware Test; not even here (which is quite comprehensive):
    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.

  • Flashing ? No HD Found to install - Hardware Test ok though...

    White Macbook 07 (i think)
    Had the dreaded flashing ? mark and i thought HD was fried as my previous post asking what hd i need to buy.
    However, i have now managed to boot up using the cd but when i got to install it wouldn't let me choose a hd i.e there was not one. Disk Utility just bought up the install cd itself.
    I've done a Hardware Test and it says no trouble found.
    How do i get it to show a hd so it can install Mac OS on there? Or no chance and HD gone.
    I have a copy of the important content so not too fussed about saving anything.
    Thanks for any help.

    Thanks for your quick response guys.
    If the Hardware Test has run with no problem rule out logic board failure or not?
    Apple Service said it was probably either a HD failure or less likely logic board failure.
    If its just the HD i fancy getting one myself and fitting as it doesn't seem that hard and will save me some money. But if its not that could be a waste of time and money.
    What spec internal HD would a White Macbook need, i posted in another thread but not checked if anyone has replied?
    Thank you again

  • Power PC G5 continues to crash after OS re-install and hardware tests.

    I have a Power PC G5 (2005) running 10.4. and have had trouble with crashing within a minute or two of booting or re-booting, and this after absolutely no trouble for 5 years and regular updates. After looking up the issue and potential fixes, I ran through a battery of possible solutions including repairing the permissions. Still no go.( I installed 3rd party RAM back in Jan of this year, but no problems until Mid September. Ran Hardware tests and everything passed.) I reinstalled the OS from the original discs thinking it was a last resort but a sure fix believing it to be software...crashed in 2 minutes after the first boot (post install)....from what I am hearing / reading it could still be the HD or RAM, but since it passed the Hardware test, I'm a little confused... Any suggestions?
    I have had some recommendations by BDAquq and will follow up on those...BDAqua recommended posting a new topic.

    BD is right on Hardware Test not doing a very good memory test. Memtest is better, as it does more of the litany of tests that are traditional, going back many decades to tests you manually keyed into the first few bytes of RAM on the first mini-computers. (That was fun, believe me.)
    Having said that, one strategy is to selectively remove RAM in pairs and reboot to see if the problem continues. That may need to be repeated, swapping DIMMs in and out to see if one of them has a problem. If the problem persists when all of the DIMM modules have at one time or another been swapped out, then you can rule out memory. If it goes away, you have found your culprit.
    If that doesn't locate a bad DIMM, then you have to start looking at panic logs to see what is going on there. I discovered a bad USB device in that manner a couple of years ago (wireless mouse transceiver) so it can be done.
    Not to play off on the last paragraph, but these problems sometimes devolve into a "mouse hunt" like in the movie with Nathan Lane. Hopefully, you can ftrack down the cause of this very annoying development.

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