Specifications

Software Tools
The following software programs are required for troubleshooting Mac mini (Late 2012):
1. Apple Service Toolkit (AST): version 1.4.5 or higher
AST provides a selection of tools that provide a quick check of the general components of Intel-based Mac hardware. Typically used to triage and
verify repairs of Mac computers.
2. Apple Service Diagnostic (ASD): version 3S151
ASD can determine if any of the thermal sensors are malfunctioning. When sensors fail, replace the corresponding part.
3. Apple Hardware Test (AHT): version 3A241
AHT contains a suite of diagnostics that will test the hardware of your computer. It's a great way to rule out a hardware issue.
4. Mac Resource Inspector (MRI)
MRI is a troubleshooting tool that reveals system errors and reports sensor readings that help identify parts that need replacement.
Before You Begin
Software and Firmware Update
Before you begin troubleshooting, ensure the correct version of OS X is installed. Use Software Update or the Mac App Store to
check for and apply the latest software and firmware updates.
Computers sometimes exhibit symptoms that indicate the wrong version of OS X system software or outdated firmware version is
installed.
Refer to Apple Support article HT1159 to make sure system build is correct for this computer model.
Cosmetic Care
Cosmetic surfaces on this computer have a high exposure to potential damage or scratching.
Be extremely careful not to damage the housing and other cosmetic surfaces with inadvertent tool movements, or to damage the
cosmetic wrapper on the lower hard drive when removing or installing it.
In general, avoid scratching interior or exterior surfaces, and avoid leaving fingerprints.
ESD Reminder
Always follow ESD precautions when working with an open computer.
Take Apart Tips
Dislodging or removing the logic board assembly is required to access many parts.
The logic board cable connectors and sockets are fragile. Use extreme care and finesse to disconnect cables.
Tweezers may be helpful when disconnecting cables.
The edge of the antenna plate is sharp. Use care to avoid injury and to avoid damaging the antenna cable.
Be careful not to touch or damage the EMI fingers or gaskets on the logic board assembly, the housing opening, or on the
bottom cover.
Do not overtighten screws. Install all screws by hand. Do not use power tools.
Important: For solid state drives, tighten screws only finger tight.