Apple Hardware Test (AHT) is GONE!! after Lion install

The Option+D route brings up the online version of AHT for me, but when it finally loads and I select a language, it comes back with "Apple Hardware Test not supported on this machine". I'm currently running 10.7.4 Intel i7

Anyone have any clue why the online AHT might not be working with my Mac? From a number of searches, almost nothing is popping up with this problem, and from this thread it also appears that I'm the only one with this problem.

From "About This Mac"

iMac 27-inch. Mid 2010

Processor: 2.93 GHz Intel Core i7

Graphics: ATI Radeon HD 5750 1024 MB

Software: Mac OS X Lion 10.7.4 (11E53)

I upgraded from Snow Leopard to Lion (digital version)

When I try to boot up AHT using option+D, it starts up, gets to the language options, but as soon as I select english it returns "Apple Hardware Test not supported on this machine" and then I can only shut down. I've also disconnected (as per recommendation) all USB attached devices before trying to run AHT.

Everything I'm running is 100% un-moddified, out of the box legitimate.

Since your machine shipped with Snow Leopard, just like mine, use the AHT disc that came with it. If other reports are correct, Lion blows away the hidden .diagnostics file from /System/Library/CoreServices/ and that's the AHT, so it won't run on your machine.

Hi Ive made a pkg that will install AHT on all those machines, that came with snow leopard. It takes a little while to install, as it does a permissions repair on the drive. Once its installed you can reboot the machine and hold down D. You can download it from here https://www.dropbox.com/s/9uxjyri2nayfpkk/AHTInstall4.pkg. Let me know if you install it on any new machines that are brand new and it works.

Thank you

JC

It puts the CPU_AHT files to the System/Library/Coreservices/.diagnostics folder. After it has done that it will then carry out a disk repair on the permissions of the OS. For some reason if you don't do the disk repair the Mac won't boot into AHT. On this I made a bash script so that it carries out the permissions repair. Pkg'ed it all up and this will then allow the mac to boot into AHT when holding down D on the keyboard.

Or you could use pacifist which is free to explore the pkg contents.

Thank You

JC

This package worked like a champ for me. I have a mid 2011 Mac Pro that shipped with Snow Leopard. Where was the CPU_AHT file installed from? Was it present on my hardrive already, or did you provide it with your pkg?

I installed the file provided by Jasric89, and I ran the disc permissions repair utility, but the AHT does not work. What happens is that my Macbook actually shuts down when I press D or option D. I'm afraid my OS was messed up. Is there a way to revert to the original configuration with a "recovery" option?

Tried Jasric89's file. Didn't help me get the AHT back in my system. Now I cant get any program that uses graphics card to function. Adobe birdge, FCPx, dvd player, etc all give me a message saying "Graphics configuration not supported" or programs just flat out crash at launch. Not sure if this is why.

I've seen some other discussion threads on this but there's no answers. I also have the famous 'invisible' login screen. I'm guessing it's the new Lion update... so upsetting. Ready to toss this Imac out. Lemon!

My os is 10.8.2

jarsic89, thank you for the package.

MBP 4.1 17" 2008

Original OS - Lepard 10.5.2

Actual OS - Lion 10.7.4

I install it and did a Permissions Repair, shut down, press D Key on Boot Up.

The AHT starts but freezes every time.

I just wanted to test it, i know the Package is for Snow Lepard.

So I am asking Apple to send me a copy of the original install DVD for Lepard.

Thanks

Macbook Pro erarly 2008

10.6.8

2.6

4gb 667mhz

So I am in the same boat, AHT not working.

I am ready to do the pacifist fix but my question is..

I have upgraded from tiger os to snow leopard and so the original disc that came with my macbook pro (bought it on ebay) is Tiger OS. What will happen if I pop Tiger OS in, will I lose Snow Leopard? The seller I bought the system from on ebay loaded SL on it so I would have no way of reinstalling should it wipe my hd.

Thanks for any help you can give

Hi!

I'm running 10.6.8 on a 17" 2.3GHz i7 MBP with 16GB of RAM and a 1TB 7,200 RPM hard drive. I downloaded your package for installing AHT, but haven't yet run it since I saw that some users experienced problems after doing so. Please let me know if this package has been successfully tested on a machine similar to mine (and with the same OS).

Thanks!

Hi Jasric

I have a daft question. I just downloaded your installer and successfully installed it. What do I do now ? How do I run it?

I have restarted my macbook and pressed Option D and still get the "Apple hardware test does not support this device" error.

I also upgraded to Lion from Snow Leopard....

Many thanks indeed.

Fatima

Make sure you shut down not restart. Unplug all internet and wifi and devices except the lion on the flash drive. I have that in the usb and its working. Didn't try it without so don't know.

Hold down D before pressing the start up button. Then you will get a gray screen let go of D button hardware test will come on screen to run.