Apple Service Diagnostic ASD 3S144 | 3.29 GB
ASD Dual Boot 3S144 | for MacBooks 13, 15, 17" early 2011
Apple Service Diagnostics is designed to run EFI and Mac OS X tests from external USB-carriers. Apple Service Diagnostics (EFI) performs direct low-level tests of hardware for Apple computers and requires no operating system, while Apple Service Diagnostics (OS) uses the Mac OS X to run these tests.
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