If nothing happens, download GitHub Desktop and try again. „Apple Hardware Test (AHT) contains a suite of diagnostics that will test the hardware of your computer. If your Mac was released after June 2013, you will use Apple Diagnostics rather than Apple Hardware Test (AHT).“ See also. To access AHT on a computer with a Recovery Partition (including an external one—make sure it’s connected), you’ll need to press the power button to boot your Mac and then immediately press and hold the D key on your keyboard. Hold D immediately after pressing the power button.

• Aht Mac Download For Pc
• Aht Mac Download Windows 10
• Mac Download Folder

Apple Hardware Test for PowerMac G4 had at least these versions (made 2000-2004):

1.0 , 1.1 , 1.2 , 1.2.1 , 1.2.2 , 1.2.3 , 1.2.4 , 1.2.5 , 1.2.6 , 1.2.7 , 2.0 , 2.0.1 , 2.0.2

[AHT for PowerMac G4 Cube is different than this page, is stored here:]
http://macintoshgarden.org/apps/apple-hardware-test-powermac-g4-cube

Individual AHT versions in oem condition are the downloads #3 and up. DL #1&2 not official Apple products, 1&2 are the same All-In-One compilation v0.7 created in the open here by a community member (dL2 is for manipulating the image in OS 9, dL1 is same thing for OS X).

Music mixer game. All-In-One v0.7-PMG4 houses many AHT versions 2.2.5 , 2.1.0 , 2.0.2 , 2.0.1 , 2.0.0 , 1.2.7 , 1.2.6 ~ plus ASD(OF) version 2.6.3 for its Extended Test of Video begins a lot sooner than AHT, if this one test were your goal.

All-In-One contains many bug fixes to its AHTs, commented in source and in documentation. AIO loads faster than oem, doesn't require disc(s) and can be installed on hard drives, SSDs, and on USB. After booting to AIO there is a menu in which the selected version is displayed, click the mouse to scroll through the available versions, and hold the mouse button down for a half second to begin loading the selected version. All versions tested to perform on Mirror Door 2003 model, even on when the motherboard of G4 is reprogrammed to a G5. Notice the AHT versions 2.2.5 and 2.1.0 go best but were amazingly distributed by Apple for only the G5.

Consider using AHT without discs. Apple's original method of booting AHT had been one version per disc you had to burn, and then Apple's original versions could encounter trouble running unless patched in ways found here. Explore this All-In-One solution.

dL #3 &up are library archives of original unmodified images or original download files. If you grab these you will find all images are empty of files and potentially useless to you because files had been hidden by apple and these images are limited in ways that the AIO isn't.

Screenshot 1 is the AHT Scripting Icon.

Screenshot 2 is the AHT v2.1 Title Screen (run on a G4 in this picture).

Screenshot 3 is the AHT v2.2.5 Tests Screen, after a 'Mirror Door late 2003' with over 2GB RAM completed and passed the 'Quick Test' in 5min:16sec.

Screenshot 4 is the AIO menu screen, shown here on an 800 X 600 resolution. Background color is deliberately black and other colors dilute to discourage CRT 'burn-in' if this gets left on. The text written stays legible if resized to any screen resolution.

Screenshot 5 is AIO AHT v1.2.6 describing 3GB (more than 2GB) RAM in Mirror Door late 2003 hardware. MDD-2003 should not be using AHT version this low, this is done for learning. All versions AHT 1.2.6 &up describe RAM > 2GB this same way. The red color is warning that Mac OS does not directly use what's in slot 3 nor > 2GB, however this model mdd2003 can utilize RAM > 2GB for video acceleration by feeding that RAM on a backchannel to the AGP bus [ link ].

Screenshot 6 is AIO AHT v1.2.6 complaining about a particular ram module, a module which works well and I use. It looks more serious than it is, actually it is not a serious thing, other than this module used to stop AHT 1.2.6 (thru 2.0.1) from launching but our 'All-In-One' fixes said bugcrash revealing this screenshot instead. There is only one 'ERROR' even though the word error is shown three times because each Line of text-output is deciding separately that it won't print its info. The DIMM speed in this case reports 'unknown' but on that same line: 'SPD' is NOT an abbreviation for SPEED rather it is the abbreviation for 'Serial Presence Detect' and pronounced SPuD. It is important to note that AHT is NOT declaring the DIMM is Unsupported, what it says is the 'SPD' associated with this DIMM is unsupported, important distinction. This DIMM works perfectly and its SPuD is of no concern to Mac OS, but a concern that ONLY AHT cares about ! The SPuD is some small data that's held inside the tiny (less than 5mm X 5mm square) chip located in one corner of the memory module.

Screenshot 7 is AIO AHT v2.2.5 a RAM detail. This screen is the same as in AHT v2.1 where it has this new way of describing the 'CL' profile per ram module, text unfamiliar to G4 users, until now. Older AHT versions give a different 'CL' description.

Screenshot 8 is one of the many views in the AHT or ASD tests of VIDEO-RAM.

Screenshot 9 is AIO AHT v2.2.5 Hardware Profile of one hot Power Mac Mirror Door late 2003, with personal info redacted. All redacted text and all visible text is being reported accurately, with one exception there is no real confirmation the RAM in ramslot #3 is healthy and in use, which it is. I believe this is the same RAM profile if the DIMM in slot 3 were recognized but was so bad/damaged that zero MB can be utilized of it. Anyway, notice the total RAM capacity in red upper right corner, expressed with '3GB' not 3072MB as in earlier versions. Notice I am a 'Power Mac G5' having a G4 CPU, this is accurate. My L3 cache size and speed is accurate, 1.583 GHz /6 (aka 6 : 1) = 263.888 MHz L3 bus. My video card and vram capacity are both accurate, AHT v2.0.2 &older could not get these right.

All changes made to AHTs within the AIO group are in verifiable open source scripted formats, documented and surgically targeted bug fixes that amount to as little as 4 to 6 lines of script per AHT version, less than .0001 percent of total code. AHT in its entirety is not open source, it contains precompiled libraries and debuggers that remain unaltered in All-In-One.

This OVERVIEW link has All the AHT and other Test software here:
http://macintoshgarden.org/apps/apple-hardware-test-cds

640 X 480 or greater display resolution; mouse.
AHT is a Firmware program, it does NOT run on any Mac OS.

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.

Aht Mac Download For Pc

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

Aht Mac Download Windows 10

MacBookPro

MacBookAir

Xserve

Mac Download Folder

Misc

• Bundle
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• Bundle
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  • iMac12,1 Mac-942B5BF58194151B
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• Bundle
  • MacBookAir5,1 Mac-66F35F19FE2A0D05
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  • MacBookPro9,2 Mac-6F01561E16C75D06
  • MacBookPro9,2 Mac-7DF2A3B5E5D671ED
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  • 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