Post Description

Apple Service Diagnostic ASD 3s.140 (Mac OSX)

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.

* ASD 3S140 supports the following machine
iMac (21.5-inch, Mid 2010)
iMac (27-inch, Mid 2010)