Newer models support holding option d to load AHT over the internet. Refer to the official Apple documentation for details: 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.
- The Apple Hardware Test.
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The rest were obtained by scraping http: 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:. Alternatively you may try with a bootable USB stick, as described below.
This is also the preferred way on OS X When trying to open an old dmg you may get the error 'legacy image should be converted'. We cannot get Outlook to install on my computer. I have seen the Bit Torrent stuff but I am not sure I can trust that. The current disk I just realized is in storage in another state and I will not be able to get to it for a while. Is there a way to save this situation and get a copy of this disk?
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Please advise. Thank you. Who is Participating? Solutions Learn More Through Courses. Experts Exchange Solution brought to you by Enjoy your complimentary solution view. Get this solution by purchasing an Individual license! Start your 7-day free trial. I wear a lot of hats LVL Adrian Cantrill Solutions Architect Commented: Ive tried to get disks from apple like this in the past and had no joy Best bet is to locate a 'reliable' bit torrent if you have the license it should be fine. EE should not be discussing downloading torrent dl's of copyrighted software from torrent sights.
Riven by Five: Download and run Apple Hardware Test (AHT) from a USB drive.
Also it is not a safe computing practice. If you are looking for such software, checkout eBay http: It depends on your country - downloading ISO's for software that you legally own is perfectly ok in many countries.
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In addition, there is nothing wrong with BT as a technology, the fact that its abused is one thing, but its a method to obtain media which you own Or am i wrong , if there is a EE policy on talking about BT i appologise: Download the guide. Beyond the legalities between differing countries, if you choose to trust BitTorrents for software, that is a pretty risky move. You have no idea if the files has extra code or hidden apps inserted. What about the newest models missing from the list?
Any ideas? I tried the MacPro3,1 version on this same model and it wouldn't boot. I tried holding down 'D' as the included PDF suggested but no boot.
Has anyone found the MacPro5,1 dmg? Just use that file name in the same URL that was posted. I can't get the URL to work. It says "not found". Anon in July 27 used "xxxx-A. I tried that and it didn't work either. I am looking for model A, late iMac 10,1. Correction, to above post, Jan 6 4: I input A, not A I tried with and without the "A" preceding the four-digit number. For those who might still have some luck with this and want to obtain the system model name, the PowerBookMedic website has a lookup feature where you input your serial number and it produces information System Profiler does not.
However, that's not going to help if the link is broken. Is there a more current one that should be used? Adult webcams Online 8. Free Adult Video Chat Free Sex Webcams Solo Girls Webcam Models Online Yeah, those links are a bit of back-door, I think, for Apple Support and I can't find a real method to the numbering. Apple might have the newer versions of AHT available publicly on their support site though. Best of luck. I tried every other way to boot into AHT and this one was my last hope, but it just didn't work for me.
Use the Apple Hardware Test (AHT) to Find Problems
It wont boot my thumbdrive even if I press D or C or Opt, and all there is in the usb stick is the System folder and the diags. Is there another way to force it to boot from the usb stick? Well, I think if you've followed the steps above, and have the correct version of AHT for your Mac, then it should work. Aww, hell, if I had this a month ago. I only check your blog every six months or so.
Can't load anything. Hence the quest for AHT. But if you have a newer lappie, you can probably just download the regular AHT from apple, not the hidden ones I refer to above, and follow similar steps. I tried this with my macbook 2,1 with no luck - just seemed to sit there and take forever to load the users.. I think i better try and reinstall everything: Sounds like it's trying to run AHT and failing. It might be the wrong version for your macbook, or maybe this method doesn't work for older machines Hope this didn't waste too much of your time -- best of luck!
Power mac G5 hardware test question.
I think this is what you're looking for: After hours and hours of struggle, I found this post and it set me free. Why Apple feels the need to hide all this from us is beyond me. It's totally crazy. Step 4 is missing something in the line command, but I figured it out. And thank goodness someone from Romania shared their link to the page with a more exhaustive list of EFI files to download. That was the last missing piece, once I had these beautiful instructions. Glad you got it work -- and hopefully AHT didn't find anything terribly wrong I will post this here so it's easier to find for others.
Hey, Great Post! I'm Having some issues, any suggestions? I follow all directions to a T in terminal and am working with a freshly wiped USB stick, it does make it to a black screen with text flashing after the sudo reboot. Text Flashing Reads: Sorry for the delay -- been travelling a bit. It looks like you're doing the USB stuff correctly, but that AHT thinks there should be some files, which there aren't. Are you sure you have the correct version of AHT?
Also, you might download Onyx http: Great Informations!
Just tell me: Tanks a lot! These instructions, I think, may only work for earlier models.
But you can try this place: I've got a MacBookAir 3,2 http: But the resulting software was dated Any idea what the right link is to download AHT for my machine? I don't think any of the links above will help. I think you should be able to boot up holding 'D'. But short of that, I really couldn't tell you. Best of luck! Thanks for that response. I think you're right about later models though. I was working with a 2nd level AppleCare tech the other day. She advised me to run the AHT. It won't work by holding down D because I'm on ML and there is no partition on my disk now with the test.
Does your USB stick have a light that might light up when you're booting? If it does, and it doesn't try to boot from the stick, it's something wrong with step 5. If it's trying to boot from the stick, and fail, then I think that means the version of AHT you downloaded isn't compatible with your machine. Maybe check the mdoel? Or, for newer modes you might apple's mainline support sites. Sorry I'm not more help Hi, you made my day today feb, 11th I was near to hopelessness to find HW Test Thanks a lot!!!
Hi Rivenx5 Your really going to have to help me out here Where or how do you find the code identifier begging with F? What or where am i looking for this?