- The Apple Hardware Test. The Apple® Hardware Test is an important troubleshooting utility that began shipping with new Macintosh® computers sometime in the year 2000. If your Mac predates the inclusion of the Apple Hardware Test, see the section 'My Mac predates the Apple Hardware Test' below.
- Mac OS X Install Disc 1 and Apple Hardware Test. Disc v1.0 2005 (DVD DL) Operating System CD-ROMs. Windows Server 2008 R2 RTM x64 (Russian) Jan 2, 2019 01/19. Eye 177 favorite 0 comment 0.
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Description
Apple computers ship with a pre-installed suite of hardware diagnostic tools, known as Apple Hardware Test (AHT). In principle you can start them by holding the
d
key while booting. Newer models support holding option d
to load AHT over the internet. Refer to the official Apple documentation for details: Using AHT on Intel-based Macs, Mountain Lion, Mavericks and Yosemite. Apple redesigned the AHT, now called Apple Diagnostics, for Macs introduced after June 2013. Consult the reference codes to interpret the results.If however, you reinstalled an older computer from scratch, the diagnostic tools might no longer be available. Unless you have the original disks that came with your computer, there seems to be no way to restore the AHT.
It happens that Apple provides disk images with AHT for most computers, but does not make the links publicly available. Various blogs and forums, mostly Riven by Five and MacForum.ro have gathered a list of download links. The rest were obtained by scraping
http://download.info.apple.com/Apple_Hardware_Test/
for all the links of the form 0(18|22)-d{4}-A.dmg
.Even though there's no guarantee that this list is correct or complete, some links can come in very handy to whoever is trying to debug hardware problems.
You can use the following terminal commands to determine the model and board ID of your computer:
Download the AHT for your computer model and use the contents to restore the
/System/Library/CoreServices/.diagnostics
folder, then reboot while holding d
to start the diagnostic tools. Alternatively you may try with a bootable USB stick, as described below.Note that there is no one-to-one correspondence between hardware model and AHT. For some models no hardware test could be found, while others seem to have multiple AHT. As the differences are not clear, feel free to try them out, to see which one works best for your hardware.
Run AHT from bootable USB stick
- Download the AHT for your computer model from the list below.
- Mount the AHT dmg. Let's refer to the mount point as
/Volumes/AHT
. - Erase and mount a USB stick. Let's assume its mounted under
/Volumes/USBstick
. - Copy the AHT to the USB stick and flag it as bootable
- Insert USB stick in the computer to be tested, boot holding the option key and select the AHT.
Download Links
PowerMac
PowerBook
iBook
iMac
MacMini
MacPro
MacBook
MacBookPro
MacBookAir
Xserve
Misc
- Bundle
- MacBook3,1 Mac-F22788C8
- MacBookPro3,1 Mac-F42388C8
- MacBookPro3,1 Mac-F4238BC8
- MacMini2,1 Mac-F4208EAA
- MacPro1,1 Mac-F4208DC8
- MacPro2,1 Mac-F4208DA9
- iMac5,2 Mac-F4218EC8
- iMac7,1 Mac-F42386C8
- iMac7,1 Mac-F4238CC8
- Bundle
- MacBook3,1 Mac-F22788C8
- MacBookPro3,1 Mac-F42388C8
- MacBookPro3,1 Mac-F4238BC8
- MacMini2,1 Mac-F4208EAA
- MacPro1,1 Mac-F4208DC8
- MacPro2,1 Mac-F4208DA9
- iMac5,2 Mac-F4218EC8
- iMac7,1 Mac-F42386C8
- iMac7,1 Mac-F4238CC8
- Bundle
- MacBook6,1 Mac-F22C8AC8
- MacBook7,1 Mac-F22C89C8
- MacBookPro8,1 Mac-94245B3640C91C81
- MacBookPro8,2 Mac-94245A3940C91C80
- MacBookPro8,3 Mac-942459F5819B171B
- MacPro4,1 Mac-F221BEC8
- MacPro5,1 Mac-F221BEC8
- iMac12,1 Mac-942B5BF58194151B
- iMac12,2 Mac-942B59F58194171B
- Bundle
- MacBookAir5,1 Mac-66F35F19FE2A0D05
- MacBookAir5,2 Mac-2E6FAB96566FE58C
- MacBookPro9,1 Mac-4B7AC7E43945597E
- MacBookPro9,2 Mac-6F01561E16C75D06
- MacBookPro9,2 Mac-7DF2A3B5E5D671ED
- MacBookPro10,1 Mac-C3EC7CD22292981F
- MacBookPro10,2 Mac-AFD8A9D944EA4843
- MacMini6,1 Mac-031AEE4D24BFF0B1
- MacMini6,2 Mac-F65AE981FFA204ED
- iMac12,1 Mac-942B5BF58194151B
- iMac13,1 Mac-00BE6ED71E35EB86
- iMac13,2 Mac-FC02E91DDD3FA6A4
Hosted on third-party servers
- Bundle
- MacBook5,1 Mac-F42D89A9
- MacBook5,1 Mac-F42D89C8
- MacBook5,2 Mac-F22788AA
- MacBook6,1 Mac-F22C8AC8
- MacBookAir2,1 Mac-F42D88C8
- MacBookPro5,1 Mac-F42D86A9
- MacBookPro5,1 Mac-F42D86C8
- MacBookPro5,2 Mac-F2268EC8
- MacBookPro5,3 Mac-F22587C8
- MacBookPro5,4 Mac-F22587A1
- MacBookPro5,5 Mac-F2268AC8
- MacMini3,1 Mac-F22C86C8
- iMac9,1 Mac-F2218EC8
- iMac9,1 Mac-F2218FC8
- iMac10,1 Mac-F2268CC8
- iMac10,1 Mac-F2268DC8
- iMac11,1 Mac-F2268DAE
I recently had a problem with the battery in my Macbook Air. I was following the instructions provided by Apple, but when pressing the D key upon startup, I was still being booted into Mac OS X instead of the hardware diagnostics.
Aht Mac Download App
The knowledge base had no solution for me but, after some looking around, I found the problem.
Your Mac will not boot into diagnostics if you have a firmware password set. In order to run the Apple Hardware Test, you’ll need to temporarily disable your firmware password. Here’s how you do it.
Mac Download Game
Are you not sure if this is what’s causing the problem? Luckily, this is easy to check.
- Shut down your Mac (Apple -> Shut Down…)
- Locate the Option key on your keyboard
- Press the Power button and then immediately press and hold the Option key
You will now either see a screen with two hard disk images (your disk and a recovery disk), or a large lock icon with a password entry. If you see the password entry, this is issue preventing you from loading the Apple Hardware Test.
Since you’ve determined that you have a firmware password, we’ll need to temporarily disable it.
- Follow the steps above (Shut Down, Hold Option until you see the password entry)
- Enter the firmware password
- Select the recovery disk using the arrow keys and enter
- Click Utilities -> Firmware Password Utility
- Click “Turn off firmware password”
- Enter the previous firmware password
- Shut down your Mac (Apple -> Shut Down…)
Now you should be good-to-go! Follow the instructions provided by Apple and run the tests. Remember to reset your firmware password when you’re done.