How do you run a hardware test?

Seems like ppl are running hardware tests...how do you do this?

I already know how to do the Hardware test. I am talking about the Apple Care CD that comes when you buy Apple Care. This CD is supposed to boot the machine and run Techtools. It does not, I was wondering if anyone has been able to boot the Apple Care CD. I did find another thread where this is a problem. It sounded to me like he said he could boot from his Apple Care CD I wanted to know how he did it. Some people have complained about the issue here
http://discussions.apple.com/thread.jspa?messageID=1779059&#1779059

Similar Messages

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

HT201257 How can I run the hardware test when my USB ports and bluetooth doesn't work?

The USB ports and the Bluetooth suddenly will not work on my Mac Mini (2008). There is very little I can do except using Remote Desktop. To run the Hardware Test, the D key has to be pressed during startup. I got no key to press. Is there any other way to do this?

Sorry, focused on bluetooth issue. If USB and bluetooth are knackered, try an SMC reset:
Shut down the computer.
Unplug the computer's power cord.
Wait fifteen seconds.
Attach the computer's power cord.
Wait five seconds, then press the power button to turn on the computer.

How do you start the hardware test on an imac with bluetooth keyboard

How do you start the apple hardware test on an imac with a bluetooth keyboard as the instructions is to press the D key whilst restarting? And of course the imac cant see the keyboard whilst booting up as the bluetooth connection has yet to be established

Have you tried following the directions for running it from the DVD? The instructions are on the Hardware Test link.If you are correct and it cannot due to the wireless keyboard not making a connection you will need to borrow a wired USB keyboard.

How to you run the fan test for 2011 MacBook Pro?

My MacBook Pro seems to get too hot and I've been reading on the forums how people run tests on the fans and CPU temps, but I can't find where there's an option to do that? Any help would be great. Thanks.

http://islayer.net/apps/istatpro/
17" 2.2GHz i7 Quad-Core MacBook Pro  8G RAM  750G HD + OCZ Vertex 3 SSD Boot HD 
Got problems with your Apple iDevice-like iPhone, iPad or iPod touch? Try Troubleshooting 101

Need to run a hardware test on MBP4,1, 17" OS 10.5.8 w/out disc?

I have a macbook pro with the following specs:
- 17inch macbook pro 4,1, 2. 5 GHz
- non-unibody (released sometime in 2008)
- OS 10.5.8
My battery recently expanded and 'exploded', so i bought a new one (from macsales.com) and replaced it. battery works fine.
I also upgraded my RAM: from 2GB to 6GB (1 x 2GB, 1 x 4GB).
I have two issues now:
1) I have a birdlike chirping sound that occurs randomly and not often. I had similar sounds prior to my battery expanding and going bust. However, now that I've bought a new battery, I have a concern that it might be something else in the hardware.
2) I would like to upgrade my OS to mavericks; but first, I understand that i have to upgrade to Snow Leopard (10.6) before upgrading to anything.
I would like to know the following:
a) I would like to run a hardware test to diagnose it and find out what the sounds are from and also a general check up before i actually upgrade OS.
However, I don't have my installation discs because I moved country and it was a long time ago.
How can i run a hardware test and check my laptop without a disc?
b) since i'm not in the US, how can i buy the Snow Leopard? is there an option for buying when outside of the US? I can't seem to find it.
thanx for your help

See if you can hunt down this...
MacBook
Pro
(2008
Early
15-‐inch) MacBookPro4,1 AHT 3A136
MacBook
Pro
(2008
Early
17-‐inch) MacBookPro4,1 AHT 3A135 022-3832-A.dmg, 3.1MB file.
b.
Other countries...
http://support.apple.com/kb/HE57
It looks like they might still have it...
http://store.apple.com/us/product/MC573Z/A?fnode=MTY1NDAzOA

How to run the Hardware test on a Mac mini 2015 ?

how to run the Hardware test on a Mac mini 2015 ?

Welcome to Apple Support Communities
New Macs come with Apple Diagnostics instead of Apple Hardware Test, but their purpose is the same: check that your Mac's hardware is working properly. See -> https://support.apple.com/kb/PH18765?locale=en_US
To run it, you only have to hold down the D key while your Mac is starting up, and follow the steps.

MacMini 2010 4,1 how to run Apple Hardware Test from /System/Library/CoreServices/.diagnostics folder

I have a 2010 Mac Mini4,1 with SnowLeapard and plan to upgrade to Mavericks, but can't run Apple Hardware Test from my applications disk 2 that came with the machine. For some reason the Mac can read it and kicks it our after about a minute. Seems to be able to reado other disks, so this one may be corrupted. I found info on this community that says that the AHT is on the hard disk and I found it here /System/Library/CoreServices/.diagnostics using terminal. When open that folder using terminal it open a window with that folders contents. My problem is I can execute the only unix executable in that folder. It responds with "No application knows how to open /System/Library/CoreServices/.diagnostics/diags.efi"
Can someone help me out here or if there is downloadable somewhere on line that I can get?

My 2010 4,1 Mac Mini still has the HW Test on the Internal HD after updating it to Lion, Mountain Lion and Mavericks.
see > Using Apple Hardware Test
Additionally if your using a wireless keyboard and it is not invoking the Hardware Test using the D key immediately after the chine, then you may need to use a USB keyboard. Adding that any Apple, PC or generic Logitech USB keyboard should work for invoking the startup commands.

How do I find out what an error code found on running the hardware test, means?

After running the hardware test on my Mac Pro I got an error code of: 4HDD/11/40000004: SATA (4,0) -- HOW DO I FIND OUT WHAT THIS MEANS?

It means your one of your SATA Hard drives is having trouble (or possibly your DVD drive, but not likley).
Got good backups? Now would be a good time to try to make some if you don't.

How do I perform a hardware test on my iMac running OS 10.9.4 ?

How do I perform a hardware test on my iMac running OS 10.9.4 ?

Hi Christopher ..
Instructions here > OS X Mavericks: Use Apple Diagnostics or Apple Hardware Test

I have a seven year old desktop. how do i run a hardware assessment test

i have a seven year old desktop. how do i run a hardware assessment test?

Hi johnnysteelers,
Welcome to the Apple Support Communities!
Please use the attached article as a resource and for information on running Apple Hardware Test.
Using Apple Hardware Test - Apple Support
Using Apple Hardware Test on computers with OS X v10.7 and earlier
AHT is located on the Applications Install Disc 2 and should be included with your computer or the MacBook Air Software Reinstall Drive on a MacBook Air (Late 2010). To start AHT on these computers make sure the Applications Install Disc 2 is inserted into the built-in optical drive, external Apple Superdrive, or for the MacBook Air (Late 2010) be sure the MacBook Air Software Reinstall Drive is inserted into a USB port. Then, follow steps 1-6 outlined in the previous section of this article.
Have a great day,
Joe

IMac intel late 2006, lost DVDs, how to run apple hardware test

Hello, Applers,
I have an iMac intel core 2 duo late 2006. I have upgraded it to snow leopard. From two months ago, it began to show distorted pictues, random lines/pixels/, and regular freezing. But if I boot it into the safe mode, it works well, although there is no sound or webcam. I did a research online and it seems that I should run apple hardware test (AHT) first. But the DVDs came withi this machines have been lost. where can I download this software? I would greatly appreciate your help if any of you who also have this model of machine and would like to lend me your DVDs.
any suggestions are welcome.

You can purchase replacements from AppleCare:
Apple Store Customer Service at 1-800-676-2775 or visit online Help for more information.
To contact product and tech support visit online support site.
There is no way to run the AHT without the discs.
If it works OK in safe mode then you might think about:
Resetting your Mac's PRAM and NVRAM
Intel-based Macs: Resetting the System Management Controller (SMC)
Reinstall Snow Leopard:
Reinstall OS X without erasing the drive
Do the following:
1. Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install the Combo Updater for the version you prefer from support.apple.com/downloads/.

How to run apple hardware test with no cdrom?

My MacBook Air won't recognise old or new hard drive and I believe I may have a logic board issue. My external CDROM has also just stopped working due to the wire being split some. I have two questions, can I get a replacement wire for the CDROM and can I run Mac hardware test on my 2008 MacBook Air without a CDROM? I still have the original CD1. I am currently booting the mac from a Lion installation on an external HDD attached to the USB port.
If the answer to those is no, where can I sell this stuff for scrap?
Thanks

See this article

Can I run the hardware test when I have four different accounts on my mac 10.8.4, can I run the hardware test when I have four different accounts on my mac 10.8.4

Hi Noticed that the top of my mac is nearly too hot to touch. Did a search online and found out about the hardware test. Looked up online user manual for my mac (Processor 3.06 GHz Intel Core 2 Duo 10.8.4) and noted how to perform the test. However, when I keep my finger on the D button through start up it just brings me right to the screen where I have to sign in to my desktop account (there are four accounts on the desktop as it is a family mac). Am I doing something wrong.
Car

Welcome to Apple Support Communities
First, you should know that it's normal that your iMac is hot at the top. Here are the fans, so it's normal that it's hotter than other parts. Before going further, download Temperature Monitor and tell us which temperatures it indicates > http://www.bresink.com/osx/TemperatureMonitor.html
If it gives dangerous temperatures, then you should run Apple Hardware Test. Looking at the processor the Mac has got, your Mac came with DVDs. Apple Hardware Test is in Mac OS X Install Disc, so insert it and hold the D key while your Mac is starting to start in Apple Hardware Test

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?
Thanks1

I 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.

How do you run a hardware test?

Similar Messages

Maybe you are looking for