About Apple Hardware Test
“Whose fault is it?” One of the major issues you'll face when troubleshooting is determining whether the problem is due to software or hardware. With the increasing power and complexity of computer systems, making this determination has become increasingly difficult. Software problems can create symptoms that appear to be hardware-related. Hardware problems can sometimes appear to be due to unusable or incorrect software.
Misdiagnosing a hardware or software issue wastes time and may lead to unnecessary replacement of service parts. Worst of all, it may not fix the problem.
AHT gives you a way to identify hardware issues and test only the hardware. It is useful in any situation in which you need to confirm that compatible ...
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