Apple Hardware Test automatically runs?
Hello everyone,
When I turned on my 13" macbook pro today, it ran the Apple Hardware Test. I ran the test and found no errors.
Is it normal for macs to automatically run this diagnostic tool? Because ive done a quick search on the internet and it seems as if the Hardware Test runs when you insert the software disk that comes with the macbook.
There is no CD in my optical drive, and I bought the macbook 6 months ago.
So is everything ok? because it worried me quite considerably that something is wrong my by macbook.
Thanks!
AFAIK, they don't even document this in the ACMT material. That's nice. It means I shouldn't need to stock all those application DVDs at work. Usually I just load the appropriate ASD revision onto my external HDD, but that may just come in handy some day.
I'm also betting AHT is installed on the firmware chip. Honestly, the downloadable version for service techs is only like 3-5MB on average. And EFI is what a modern BIOS/firmware should be... It initializes the hardware, then hands things over to the OS and gets out of the way. You have a cheap little 32Mb or 64Mb flash chip, you'd probably have room to spare.
Similar Messages
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Can't get apple hardware test to run.
Hi,
I'm on a macbook pro late 2008 running 10.6.8 and I can't get apple hardware test to run.
I upgraded with a 10.6.3 disk and there is only one install disk. I insert it restart whilst holding d, nothing happened, restart whilst holding alt + d, again nothing.
Any ideas?
Thank you.You will need the #2 installation disk (that came with the MBP) with the Apple Hardware Test instructions on it.
Ciao. -
How long should the Apple Hardware Test (AHT) run?
II'm running the AHT on a 2012 quad core i5 iMac 16gb/3TB .....the progress bar moved quickly to about 7/8 done, about 4 minutes, but now has been sitting there for 40 minutes.
can anyone provide experience or input as to how long I should expect it to sit there?
thanksIf you run AHT in extended mode it can take over an hour to run, one factor is the HD capacity.
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Running Apple Hardware Test... without ability to see the screen
Here's a nice conundrum- my screen isn't working. I want to run Apple Hardware Test, but since I can't see it... no dice.
I'm pretty sure this is the NVidia 8600GT problem- Apple has acknowledged that these graphics cards are defective. http://support.apple.com/kb/TS2377
The only way I can get into the computer is to use screen share- I've tried an external monitor, and it doesn't work. And I can't screen share when the apple hardware test is running- any idea how to see this? Another option- is there anyway I could start it without seeing anything, and then look at the results later? Are the results saved in Console or anywhere?
Thanks1I dont think you need to do a hardware test.
Its the 8600 video cards, thats why Apple extended the warranty on the cards. Just bring it to the Genius Bar and they will sort it out for you. -
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:
To use the AHT, hold down the D key as the computer starts up.
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
That unhides all hidden files/folders.
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.
Run this command to hide the normally hidden files/folders and RELAUNCH the Finder again.
defaults write com.apple.finder AppleShowAllFiles 0
This should allow the machine to boot into AHT when restarting and holding down the D key.
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. -
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.
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Error Code After Running Apple Hardware Test
I ran apple hardware test (I'm having problems where my computer freezes for like 10 seconds with the mouse being movable... but it happens very frequently. like once a minute. it's SOOO ANNOYING)
this is the error i got after running apple hardware test:
(it came out as a Mass Storage error... which is Hard Disk i guess)
**ERROR*CODE***ERROR*CODE**
2STF/8/3: S-ATA Bus 0-Master
**ERROR*CODE***ERROR*CODE**
Does anyone know what I can do to fix it. Apple Hardware Test only allows me to find the error and then restart or shut down... which is useless cause what is the error code supposed to mean. I've only got Apple 1 yr repair support left... so I cant call up Apple or anything. Does anyone know anything about this and what I could do to fix it!?
I know about this: http://www.apple.com/support/imac/repairextensionprogram/
I might go to the apple store, but I dont wanna make a trip out there for nothing.
Does anyone know what I can do or should I just take it to the apple store.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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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.
http://support.apple.com/kb/HT1509 -
I've been having two issues with my Late 2008 MacBook Pro 15-inch - Running OS X 10.8.5 (Mountain Lion). Unable to Reset the PRAM and Run Apple Hardware Test (AHT).
On a random basis - File/Folder icons are Sticking to the Mouse Pointer - Not Releasing. I've done everything from trashing finder preferences, making sure Universal Access preferences are off, Restoring Defaults in the Energy Saver System Preferences, Resetting the System SMC. Another post mentioned that this is being caused by the Graphics Driver not working correctly - and mentioned to put the MBP to sleep, then wake it up, and the files/folders are no longer sticking to the mouse pointer. This works for me and released the sticking items in the Finder.
OK, Good this is a simple fix, BUT, what is really causing this issue, and how may it be fixed or repaired?
I also tried to Reset the PRAM and Run the Apple Hardware test (AHT), and these both fail to run on my MacBook Pro with OS X 10.8.5.
1) Resetting the PRAM:
Shut down the MBP, press the power button, and hold down at the same time <option><command>-P-R. The Reset PRAM process never starts up, but rather I receive the Padlock/Password Login which logs me into the Restore System Utilities. I'm unable to Reset the PRAM.
2) Apple Hardware Test (AHT):
Shut down the MBP, press the power button, and hold down the "D" key, the system boots up as normal and does not enter the AHT.
The File/Folder Finder sticking to the mouse pointer issue is very annoying. Does anyone have a solution to resolve this issue?
- CheersHI Barbara,
It sounds like the hard drive is failing or has failed. Boot from your Mac install disc and if you can run Disk Utility in case the startup disk needs repairs.
Insert your install disk and Restart, holding down the "C" key until grey Apple appears.
Go to Installer menu and launch Disk Utility.
Select your HDD (manufacturer ID) in the left panel.
Select First Aid in the Main panel.
*(Check S.M.A.R.T Status of HDD at the bottom of right panel. It should say: Verified)*
Click Repair Disk on the bottom right.
If DU reports disk does not need repairs quit DU and restart.
If DU reports errors Repair again and again until DU reports disk is repaired.
When you are finished with DU, from the Menu Bar, select Utilities/Startup Manager.
Select your start up disk and click Restart
While you have the Disk Utility window open, look at the bottom of the window. Where you see Capacity and Available. *Make sure there is always 10% to 15% free disk space*
If you cannot boot from your install disc, try booting in Safe Mode
What is Safe Mode
Carolyn -
Problems running Apple Hardware Test
I'm trying to run the Apple Hardware Test, but it never seems to start. I've tried holding down the C and option keys on restart, but all that happens is that the disk is ejected, and when I push it back in the computer restarts as normal. Is there anything else I can try?
ThanksThanks for the for the suggestion, but holding down D doesn't work either. As the computer starts up, the disk ejects (whether there's a disc in there or not), no matter what I'm holding down. And when I push it back in there's a lot of whirring, indicating the disk is spinning, but the computer starts up as normal; no hardware test. Any ideas what's wrong?
Thanks -
the manual says to disconnect everything except the mouse and keyboard, then reboot holding D to enter the hardware diagnostic program.
When I follow those directions the computer displays a blank grey screen for a very long time and then boots up normally. I have tried this with my apple bluetooth keyboard and a dell USB keyboard with the same result.
I don't have my system CDs.
Any suggestions?Holding the D key down doesn't work because the AHT is not on your system and you don't have the gray-faced OS X disks that came with your system in the DVD drive.
Usually, when doing the Apple hardware test, you insert the first OS X disk that came with the system. You can restart holding the alt/option key down which allows you to choose what you want to do (AHT or boot). Holding the D key down bypasses that step to start the AHT automatically. In some cases the AHT can be on the system, but if not, you need your system disk. If you have either of the TechTool programs, they can do similar hardware testing.
If you call Apple support, they can provide a replacement set for a nominal fee. -
I'm positive my exhaust fan is on it's last leg. I want to run a hardware test to confirm, but nothing works. I've shut down and held D on starting, I've held Option + D, I've held Command + D, I've restarted, shut down and started up with all these. Nothing works. I have a wired USB keyboard, and I've tried with it directly plugged into the mac. I'm at my wit's end here!
20-inch, Early 2008
Processor 2.66 GHz Intel Core 2 Duo
Memory 2 GB 800 MHz DDR2 SDRAM
Graphics ATI Radeon HD 2600 Pro 256 MB
Software OS X 10.9.2 (13C64)Hi Amanda Marvin!
Try running the Apple Hardware Test by using the steps listed in this article about AHT:
Using Apple Hardware Test
http://support.apple.com/kb/ht1509
If necessary, you may need to also try resetting your SMC if you are having difficulty loading the hardware test:
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/ht3964
Thanks for coming to the Apple Support Communities!
Cheers,
Braden -
Running Apple Hardware test from DVDs
Hi,
I am trying to run Apple Hardware Test, following the instructions at this site.
Restarted the machine with the letter D pressed, disconnected external devices, except mouse-keyboard and my (2) screens.
I disconnected i-lok dongle from PT HD/digidesign at an usb port and connections to the external audio intefcaes .
There are 2 pci-e cards inside this 1,1 MAc Pro.
I know It is a bit weird to ask this ( I used to do this with a G4 and a G3), but I only see the disc open with all the installation content and no AHT icon or utility.
I tried DVD1, 2 of 10.4, 10.5 and 10.6.
ThanksSure, that is the first disc I inspected.
Thanks!
10.4.x
I press D but the test does not start. Laso, I did not find the AHT icon at the disc.
I see the MAc Os installers, miscelaneous...
I might be doing something wrong.
BTW... I also love cats. There is one right here by my side. I will post a pic soon! -
Does anyone know how can i get or download the apple hardware test for a macbook pro made in 2012 running Mavericks 10.9.3. Thanks.
Sean and Andy -
I have to agree with Andy here. I am having the same problem on a mid 2010 MBP (6,2). I have already read the AHT info provided by Sean's link, and they are less than helpful. I'm sure they will be helpful to those who find that they work, but they are confusing if this is not the case. For example, my MBP(6,2) came with ONE (not two) installation disks, so the instructions don't work for me. Another issue is the instructions confound the descriptions related to the MBP, the original (delivered) software (OS X version), and the current installed OS X upgrade software.
So here's what does NOT work for me...
(A) I cannot install 'Disk 2', since I never received this with my original (new) purchase in mid 2010.
(B) I have checked my firmware versions and they are all up to date, as per Apple's information.
(C) As suggested in another thread, I looked for /Library/Core Services/.diagnostics and it was NOT present. I followed his instructions, downloaded the correct (I believe) dmg, and installed it. It is in the correct place, and I can see all the invisible files using Pathfinder.
(D) When I re-start holding down the D key (immediately), it just goes through the normal boot routine; no evidence of AHT.
(E.1) When I re-start holding down OPT-D, I get a spinning globe, and then it prompts me for a network (wi-fi) connection.
(E.2) For some unknown reason, the prompt identifies between 2 and 5 of my --neighbors'-- routers, but does not show mine. (??!!)
(E.3) The routers are listed alphabetically; however, my router SHOULD be at the top of the list by this criterion, but it is nowhere to be seen.
(E.4) The 'internet recovery' process then allows me to enter a network name AND password. I do this, for my current wi-fi router, and the process rejects it as an incorrect login ID. It is NOT an incorrect login ID!
So, now asking Sean and Andy (or anyone else) for further suggestions... ??? As Andy suggested, many people ask questions here because they have -already- worked through the 'official' recommendations, and have found them to be inadequate.
Any advice would be appreciated! TIA.
Ed -
I have Mac Pro 2010 model and it's giving heavy fan noise,so run the Apple hardware test but it's showing the Error: 4SMC 1 40000000 please help me in this issue.
Same error information here.
https://discussions.apple.com/message/13083664?messageID=13083664
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