Apple Service Diagnostics 3S151 MacOSX



Apple Service Diagnostics (ASD) is distributed to Apple Service Providers. The Apple Service Diagnostics application is designed to run both
EFI and Mac OS X tests from an external USB hard drive. Apple Service Diagnostics (EFI) runs low-level tests of the hardware directly and

does not require Mac OS X, while Apple Service Diagnostics (OS) uses Mac OS X to run tests.
Installing Apple Service Diagnostics on a USB hard drive

Please refer to the document "Installing ASD on a USB hard drive" included with this release.
Note: ASD is tested with a custom Mac OS that is supplied in the image. As a test requirement the OS is set up as a root user. DO NOT copy

ASD to another OS or some tests will fail. Also running ASD on another OS removes some of the Finder menu items and sets preferences

specifically for ASD requirements. It will damage your OS so use the one provided.
Booting and using the Apple Service Diagnostics application

Before using Apple Service Diagnostics, disconnect any Ethernet network, USB, and audio cables.
With the USB hard drive containing ASD OS 3S151 and ASD EFI 3S151 plugged into a USB port, restart the computer and hold down the
option key as the computer boots up into the Boot Picker. To run ASD (EFI) select the "ASD EFI 3S151" drive icon and press return or
select it with a mouse click. To run ASD (OS) select the "ASD OS 3S151" drive icon and press return or select it with a mouse click. ASD
(EFI) will load in 20-30 seconds; ASD (OS) will load in 1-2 minutes. Plug in the power adapter before starting tests on Laptops.
After running ASD (OS) or ASD (EFI), press the Shut Down button to shut down the computer. Removed the USB drive.

Name: Apple Service Diagnostics
Version: 3S151
Mac Platform: Intel
OS version: 10.8 or later
Processor type(s) & speed: 64-bit Intel
RAM minimum: 4 GB
Video RAM: not needed

Apple Service Diagnostics 3S151
ASD 3S151
Supports the following machine
iMac (27-inch, Late 2012)
iMac (21.5-inch, Late 2012)
Mac mini (Late 2012)
MacBook Pro (Retina, 13-inch, Late 2012)